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A

Asif 10/11/2016 in

Azaz replied | 20/11/2016

1.7

Sarvajeet replied | 02/12/2016

(1+(1/square root 2)) or 1.7071

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R

Robin 10/11/2016 in

What is the value of sin 50 - sin 70 + sin 10?

Sonu Pal replied | 18/11/2016

0

Richa replied | 19/11/2016

0

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S

Shubham 10/11/2016 in

Puneet replied | 22/11/2016

sin45 + (1/sin45)=((sin45)^2 +1)/sin45 =3/(2 *square root 2)

Sarvajeet replied | 02/12/2016

3/square root 2

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N

Neetu 10/11/2016 in

Sanjeev replied | 07/12/2016

Put x = 45 degree.

Sanjeev replied | 07/12/2016

Put x = 45 degree value =a.

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D

Deepthi 10/11/2016 in

S

Shiv replied | 19/11/2016

1

Sarvajeet replied | 02/12/2016

1

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V

Vikna 10/11/2016 in

If tan x = b / a, then find the value of (a + b) / (a - b)?

Jeet replied | 02/12/2016

sec2x + tan2x.

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V

Vivek 10/11/2016 in

If a cos x + b sin x = m and a sin x - b cos x = n, show that (square of a) + (square of b) = (square of m) + (square of n)?

Gunturi replied | 03/12/2016

Square the two equations and add. Apply the Pythagorean trigonometric Identity.

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J

Find the value of (tan 22 degree)?

Rachna replied | 18/11/2016

Around 0.4

Richa replied | 19/11/2016

0.008851

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G

Gaurang 10/11/2016 in

If tan x = 1/2 and tan y = 1/3, then what is the value of x + y?

Tapas replied | 28/11/2016

tan(x + y) = [tan x + tan y] / [1 - (tan x)(tan y)] = [(1/2) + (1/3)] / [1 - (1/2)(1/3)] = 1 = tan (pi/4)
So, x + y = pi/4 radian = 45 degrees.

Sarvajeet replied | 02/12/2016

45 degree.

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S

Shamss 10/11/2016 in

If tan x = m / m + 1, tan y = 1/2m +1 then what is the value of x + y?

Sreedevi replied | 07/12/2016

45 degrees.

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K

Kiran 10/11/2016 in

What is the value of sin(45 + x) - cos(45 - x)?

Sarvajeet replied | 02/12/2016

0

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S

Sujish 10/11/2016 in

What is the minimum value of 3 cosx + 4 sinx + 8?

Ankit replied | 22/11/2016

f(x) = 3cosx + 4sinx + 5
f '(x) = -3sinx + 4cosx
0 = -3sinx + 4cosx
3sinx = 4cosx
tanx = 4/3
x = 0.927 + npi radians for all integers, n
f ''(x) = -3cosx - 4sinx
f ''(0.927) = -5 < 0 so a maximum occurs at x = 0.927
f ''(0.927 + pi) = 5 > 0 so a minimum occurs at x = 4.069
f(0.927 + pi) = f(4.069) = 0

Sarvajeet replied | 02/12/2016

9

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P

Parna 10/11/2016 in

If sin x + cos x = 1, then what is the value of sin 2x?

Hussam Uddin replied | 22/11/2016

Squaring on both sides, we get sin2x+ cos2x + sin2x = 1, 1 + sin 2x = 1, sin2x = 0.

Sarvajeet replied | 03/12/2016

0

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T

Thimma 10/11/2016 in

Prove that: (tan A + sec A - 1) / (tan A - sec A + 1) = (1 + sin A) / cos A?

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D

Dilpreet 10/11/2016 in

If sin x + cos x = 1, then find the general value of x?

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M

Mrs 10/11/2016 in

If sec x cos 5x + 1 = 0, where 0 < x < 90 degree, then find the value of x?

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K

Khushwunder 10/11/2016 in

Find the most general value of angle satisfying the equation tan x = -1 and cos x = 1/2?

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A

Atharva 10/11/2016 in

Find the value of the expression: 3 [square of sin (3/2) - a] + [square of sin (3 + b)]?

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A

Arumugam 10/11/2016 in

What is the value of sin 60 + cosec 45?

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A

Anu 10/11/2016 in

What is the value of cos 12 + cos 84 + cos 156 + cos 132?

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S

Shashikant 10/11/2016 in

What is the value of (sin 45)(sin 60)?

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S

Sample 10/11/2016 in

What is the value of cos 45 - sin 60?

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U

Uma 10/11/2016 in

What do you mean by trigonometry?

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N

Neeraj 10/11/2016 in

What is the value of cos 50 + sec 60?

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K

Karunanidhi 10/11/2016 in

What is the value of sin 56 + tan 90 + sin 45 + cos 45?

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