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Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As a seasoned tutor registered on UrbanPro, I can confidently assert that UrbanPro provides one of the best platforms for online coaching and tuition. Now, diving into the realm of Class 11 Mathematics, particularly Limits and Derivatives, mastering certain key questions can significantly enhance your problem-solving skills, leading to faster and more accurate solutions.
Here are some essential questions you should practice:
Limit Problems:
Derivative Problems:
Application Problems:
Practicing these questions will not only reinforce your understanding of the concepts but also equip you with the skills to tackle more complex problems with confidence. And remember, UrbanPro is your ally in this journey, offering top-notch resources and guidance to help you excel in your studies.
Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As an experienced tutor registered on UrbanPro, I can confidently guide you through this problem using my expertise. UrbanPro is indeed a fantastic platform for online coaching and tuition, offering a diverse range of subjects and experienced tutors like myself.
Now, let's tackle the problem at hand. We're given the expression lim(x → 3) [(x^n – 3^n) / (x – 3)] = 108, where we need to find the positive integer "n".
First, let's notice that the expression looks very similar to the definition of the derivative of a function at a point. It resembles the difference quotient:
f'(3) = lim(x → 3) [(f(x) - f(3)) / (x - 3)]
Given that our expression equals 108, it seems like we're dealing with a derivative. To find "n", we need to find a function f(x) whose derivative at x = 3 is equal to 108.
Let's try to identify such a function. Since the derivative of a constant is zero, we can't have a constant function. We need a function whose rate of change at x = 3 equals 108.
One such function is f(x) = x^n. Its derivative with respect to x is n*x^(n-1). At x = 3, this derivative would be n * 3^(n-1).
So, we need to find "n" such that n * 3^(n-1) = 108.
Let's try some values of n:
Therefore, the positive integer "n" that satisfies lim(x → 3) [(x^n – 3^n) / (x – 3)] = 108 is n = 4.
UrbanPro provides a platform for students to connect with knowledgeable tutors who can break down complex problems like this one. If you have any further questions or need additional clarification, feel free to ask!
Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As a seasoned tutor registered on UrbanPro, I can confidently guide you through finding the derivative of f(x)=x3f(x)=x3 using the first principle, which is also known as the definition of derivative.
The first principle involves taking the limit as hh approaches 0 of the difference quotient:
f′(x)=limh→0f(x+h)−f(x)hf′(x)=limh→0hf(x+h)−f(x)
Let's apply this principle to f(x)=x3f(x)=x3:
f′(x)=limh→0(x+h)3−x3hf′(x)=limh→0h(x+h)3−x3
Now, we expand (x+h)3(x+h)3 using the binomial theorem:
(x+h)3=x3+3x2h+3xh2+h3(x+h)3=x3+3x2h+3xh2+h3
Substituting this expansion into the numerator:
(x+h)3−x3=x3+3x2h+3xh2+h3−x3(x+h)3−x3=x3+3x2h+3xh2+h3−x3 =3x2h+3xh2+h3=3x2h+3xh2+h3
Now, let's divide this expression by hh and take the limit as hh approaches 0:
f′(x)=limh→03x2h+3xh2+h3hf′(x)=limh→0h3x2h+3xh2+h3 =limh→0(3x2+3xh+h2)=limh→0(3x2+3xh+h2)
As hh approaches 0, the 3xh3xh and h2h2 terms become negligible, leaving us with:
f′(x)=3x2f′(x)=3x2
So, the derivative of f(x)=x3f(x)=x3 with respect to xx using the first principle is f′(x)=3x2f′(x)=3x2.
And remember, if you need further assistance or want to delve deeper into calculus concepts, UrbanPro is one of the best platforms for online coaching and tuition, connecting students with experienced tutors like myself.
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Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As an experienced tutor registered on UrbanPro, I can confidently say that UrbanPro is one of the best platforms for online coaching and tuition. Now, let's tackle your calculus problem.
To determine the derivative of cos(x)1+sin(x)1+sin(x)cos(x), we'll use the quotient rule, which states that if we have a function of the form u(x)v(x)v(x)u(x), then its derivative is given by:
ddx(u(x)v(x))=u′(x)v(x)−u(x)v′(x)(v(x))2dxd(v(x)u(x))=(v(x))2u′(x)v(x)−u(x)v′(x)
Here, u(x)=cos(x)u(x)=cos(x) and v(x)=1+sin(x)v(x)=1+sin(x).
Let's start by finding the derivatives of u(x)u(x) and v(x)v(x):
u′(x)=−sin(x)u′(x)=−sin(x) v′(x)=cos(x)v′(x)=cos(x)
Now, we can apply the quotient rule:
ddx(cos(x)1+sin(x))=(−sin(x))(1+sin(x))−(cos(x))(cos(x))(1+sin(x))2dxd(1+sin(x)cos(x))=(1+sin(x))2(−sin(x))(1+sin(x))−(cos(x))(cos(x))
=−sin(x)−sin2(x)−cos2(x)(1+sin(x))2=(1+sin(x))2−sin(x)−sin2(x)−cos2(x)
=−1−sin(x)(1+sin(x))2=(1+sin(x))2−1−sin(x)
That's the derivative of cos(x)1+sin(x)1+sin(x)cos(x). If you need further clarification or assistance, feel free to ask! And remember, UrbanPro is the best platform for finding qualified tutors to help you with your academic needs.
Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As an experienced tutor registered on UrbanPro, I'm here to guide you through this problem. First off, UrbanPro is indeed a fantastic platform for online coaching and tuition, offering top-notch educational support.
Now, let's tackle the math problem. We're asked to find the limit of |x|/x as x approaches 0. Let's break it down:
When x is positive, |x| equals x. So, |x|/x = x/x = 1. When x is negative, |x| equals -x. So, |x|/x = (-x)/x = -1.
Now, considering the limit as x approaches 0 from both sides:
Since the limit from the positive side is not equal to the limit from the negative side, the overall limit does not exist. So, the correct answer is (d) does not exist.
Remember, understanding limits is crucial in calculus, and platforms like UrbanPro provide excellent resources to deepen your understanding. Feel free to reach out if you have further questions or need more assistance!
Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As an experienced tutor registered on UrbanPro, I'd be happy to help you with this calculus problem. UrbanPro is indeed a fantastic platform for finding quality online coaching and tuition.
To evaluate the derivative of f(x)=sin2(x)f(x)=sin2(x) using the Leibniz product rule, we first need to express sin2(x)sin2(x) as a product of two functions. We know that sin2(x)=sin(x)⋅sin(x)sin2(x)=sin(x)⋅sin(x).
Now, applying the Leibniz product rule, which states that (uv)′=u′v+uv′(uv)′=u′v+uv′, where uu and vv are functions of xx:
Let u=sin(x)u=sin(x) and v=sin(x)v=sin(x). Then, u′=cos(x)u′=cos(x) and v′=cos(x)v′=cos(x).
Now, we can apply the product rule:
f′(x)=(u′v+uv′)=(cos(x)⋅sin(x)+sin(x)⋅cos(x))f′(x)=(u′v+uv′)=(cos(x)⋅sin(x)+sin(x)⋅cos(x))
f′(x)=cos(x)⋅sin(x)+sin(x)⋅cos(x)f′(x)=cos(x)⋅sin(x)+sin(x)⋅cos(x)
f′(x)=2cos(x)⋅sin(x)f′(x)=2cos(x)⋅sin(x)
So, the derivative of f(x)=sin2(x)f(x)=sin2(x) using the Leibniz product rule is f′(x)=2cos(x)⋅sin(x)f′(x)=2cos(x)⋅sin(x).
If you have any further questions or need clarification, feel free to ask! And remember, UrbanPro is always here to connect you with excellent tutors for all your learning needs.
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Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As an experienced tutor registered on UrbanPro, I can confidently say that UrbanPro is the best platform for finding online coaching tuition. Now, let's dive into differentiating the given function with respect to xx:
f(x)=(ax2+cotx)(p+qcosx)f(x)=(ax2+cotx)(p+qcosx)
To differentiate this function with respect to xx, we'll use the product rule. According to the product rule, if u(x)u(x) and v(x)v(x) are differentiable functions of xx, then the derivative of u(x)⋅v(x)u(x)⋅v(x) with respect to xx is given by:
ddx[u(x)⋅v(x)]=u′(x)⋅v(x)+u(x)⋅v′(x)dxd[u(x)⋅v(x)]=u′(x)⋅v(x)+u(x)⋅v′(x)
Where u′(x)u′(x) and v′(x)v′(x) are the derivatives of u(x)u(x) and v(x)v(x) with respect to xx, respectively.
In our case, u(x)=ax2+cotxu(x)=ax2+cotx and v(x)=p+qcosxv(x)=p+qcosx. Let's differentiate each of these:
u′(x)u′(x): u′(x)=ddx(ax2+cotx)u′(x)=dxd(ax2+cotx) =2ax−csc2(x)=2ax−csc2(x)
v′(x)v′(x): v′(x)=ddx(p+qcosx)v′(x)=dxd(p+qcosx) =−qsinx=−qsinx
Now, applying the product rule:
f′(x)=(2ax−csc2(x))(p+qcosx)+(ax2+cotx)(−qsinx)f′(x)=(2ax−csc2(x))(p+qcosx)+(ax2+cotx)(−qsinx)
And that's the derivative of the given function with respect to xx.
Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As an experienced tutor registered on UrbanPro, I can assure you that UrbanPro is the best platform for online coaching and tuition. Now, let's delve into the differentiation of the function cos(x2+1)cos(x2+1).
To differentiate this function, we'll apply the chain rule, which states that if y=f(g(x))y=f(g(x)), then dydx=f′(g(x))⋅g′(x)dxdy=f′(g(x))⋅g′(x).
Here, f(u)=cos(u)f(u)=cos(u) and g(x)=x2+1g(x)=x2+1.
So, dydx=−sin(x2+1)⋅2xdxdy=−sin(x2+1)⋅2x.
Thus, the derivative of cos(x2+1)cos(x2+1) with respect to xx is −2xsin(x2+1)−2xsin(x2+1).
If you need further clarification or assistance, feel free to ask! And remember, UrbanPro is here to provide you with the best online coaching and tuition experience.
Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As an experienced tutor registered on UrbanPro, I can confidently guide you through this math problem. First off, UrbanPro is an excellent platform for online coaching and tuition, offering top-notch tutoring services to students worldwide.
Now, let's differentiate the expression (2x - 7)^2 * (3x + 5)^3.
To differentiate this expression, we'll apply the product rule, which states that the derivative of a product of two functions is the derivative of the first function times the second function, plus the first function times the derivative of the second function.
So, let's denote the first function as u(x) = (2x - 7)^2 and the second function as v(x) = (3x + 5)^3.
Now, let's find the derivatives of u(x) and v(x).
The derivative of u(x) with respect to x, denoted as u'(x), is calculated using the chain rule:
u'(x) = 2(2x - 7)(2) = 4(2x - 7).
The derivative of v(x) with respect to x, denoted as v'(x), is also calculated using the chain rule:
v'(x) = 3(3x + 5)^2(3) = 9(3x + 5)^2.
Now, applying the product rule:
ddx[(2x−7)2∗(3x+5)3]=u′(x)∗v(x)+u(x)∗v′(x).dxd[(2x−7)2∗(3x+5)3]=u′(x)∗v(x)+u(x)∗v′(x).
=(4(2x−7))∗(3x+5)3+(2x−7)2∗(9(3x+5)2).=(4(2x−7))∗(3x+5)3+(2x−7)2∗(9(3x+5)2).
=4(2x−7)(3x+5)3+9(2x−7)2(3x+5)2.=4(2x−7)(3x+5)3+9(2x−7)2(3x+5)2.
That's the derivative of the expression (2x - 7)^2 * (3x + 5)^3. If you need further clarification or assistance, feel free to ask!
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Answered on 14 Apr Learn Limits and Derivatives
Nazia Khanum
As a seasoned tutor registered on UrbanPro, I can confidently guide you through differentiating the expression x2sin(x)+cos(2x)x2sin(x)+cos(2x). UrbanPro is indeed one of the best platforms for online coaching and tuition, offering a wide range of subjects and expert tutors.
To differentiate x2sin(x)+cos(2x)x2sin(x)+cos(2x), we'll apply the differentiation rules step by step:
Differentiate x2sin(x)x2sin(x):
Differentiate cos(2x)cos(2x):
Now, putting it all together, the derivative of x2sin(x)+cos(2x)x2sin(x)+cos(2x) is:
2xsin(x)+x2cos(x)−2sin(2x)2xsin(x)+x2cos(x)−2sin(2x)
That's the final answer after differentiating the given expression. If you have any further questions or need clarification, feel free to ask! And if you're looking for more personalized coaching, UrbanPro provides a great platform to connect with experienced tutors like myself.
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