If cosec |=3x and cot |=3/x. then find the value of (x2-1/x2)

Asked by Last Modified  

20 Answers

Learn Mathematics +1 Class IX-X Tuition

Follow 21
Answer

Please enter your answer

Salman Ahmad Siddiqui

CSAT Tutor, BPSC DI Tutor (Ex. Drishti IAS Senior Content Writer)

=1/9 use formula cosec² x -cot² x =1
Comments
Dislike Bookmark

Tutor

cosecβ = = 3X and cotβ = 3/X , to find value ( X2 - 1/X2 ) . we know , cosec2β = cot2β +1 putting value , (3X )2 = ( 3/X )2 +1 , OR 9X2 = 9 /X2 + 1 , OR 9X2 – 9/X2 = 1, OR 9( X2 - 1/X2 ) = 1, SO (X2 – 1/X2 ) = 1/9
read more
cosecβ = = 3X and cotβ = 3/X , to find value ( X2- 1/X2) . we know , cosec2β = cot2β +1 putting value , (3X )2= ( 3/X)2+1 , OR 9X2= 9 /X2 + 1 , OR 9X2– 9/X2= 1, OR 9( X2- 1/X2) = 1, SO (X2– 1/X2) = 1/9 read less
Comments
Dislike Bookmark

Chemistry Teacher

Cosec^2A = 1 + cot^2 A (3x)^2 - 1/(3x)^2 = 1 9{(x)^2 - 1/(x)^2 = 1/(9) ans
Comments
Dislike Bookmark
x=cosec/3
Comments
Dislike Bookmark

Coaching Institute

1/9
Comments
Dislike Bookmark

Science Teacher

the answer is given in the following attachment
Comments
Dislike Bookmark

Eco, Maths and Stats Tutor

cosec(^2)l=9x(^2). cot(^2)l=9/(x^2). Use cosec(^2)l-cot(^2)l=1. Then x^2-1/x^2=1/9
Comments
Dislike Bookmark

Trainer

Cosec^2x -Cot^2x = 1 (From Formula) From Question, (3x)^2-(3/x)^2=1 3*(x+1/x)*3*(x-1/x)=1 Therefore,(x+1/x) (x-1/x)=1/9 x^2-1/x^2=1/9
Comments
Dislike Bookmark

cosec^2 I - cot^ l = 1 (3x)^2- (3/x)^2=1 9x^2 - 9/x^2 =1 9(x^2- 1/x^2)=1 x^2-1/x^2 =1/9
Comments
Dislike Bookmark

Mathematics Tutor

From right angle triangle we get (3/x)^2+1=(3x)^2 9x^2-9/(x^2)=1 x^2-1/x^2=1/9
Comments
Dislike Bookmark

View 18 more Answers

Related Questions

..........+..........+..........= 30 (1,3,5,7,9,11,13,15) you can also repeat the numbers
9+11+(11-1)
Karan Singh
Find the value of (sin°45- cos°45)
You know that both 45 degree value are same. so put them and you will get ZERO.
Preeti
0 0
View Comments5
Cards, marked with numbers 5 to 50, are placed in a box and mixed throughly. A card is drawn from teh box at random. Find the probability that the number on the taken out card is: (i) a prime number less than 10. (ii) a number which is a perfect square." "
The sample size is 46 (i) The prime numbers less than 10 are 5 and 7. so the probability is 2/46 or 1/23. (ii) The perfect squares are 9,16,25, 36 and 49-five in all so the probability is 5/46
Akhil
0 0
View Comments5
Do I need tuition for science for the class 10 board exam?
Tuitions are absolutely not required for CBSE class 1o science as the contents in NCERT are absolutely self explanatory.
Jacob
0 0
View Comments5
Find the value of (sin°45- cos°45)
ans is 0
Guruprasad
0 0
View Comments6

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Class-10 L-5 Arithmetic Progressions Ex-5.2 Q3 (i)

Ashish Bhatia

0 0
View Comments0
Graphical method solution Pair of linear equations in two variables

Irfan

0 0
View Comments0
class-10 L-6 Triangles Ex-6.2 Q9

Ashish Bhatia

0 0
View Comments0
Class-10 L-1 Real Numbers Ex-1.1 Q2 (iii)

Ashish Bhatia

0 0
View Comments0
Class-10 L-4 Quadratic Equations Ex-4.1 Q1 (iii)(iv)

Ashish Bhatia

0 0
View Comments0

Recommended Articles

Meet Sandhya R, a B.Sc tutor from Bangalore

Sandhya is a proactive educationalist. She conducts classes for CBSE, PUC, ICSE, I.B. and IGCSE. Having a 6-year experience in teaching, she connects with her students and provides tutoring as per their understanding. She mentors her students personally and strives them to achieve their goals with ease. Being an enthusiastic...

Read full article >

Meet Raghunandan.G.H, a B. Tech Tutor from...

Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...

Read full article >

Quest Academy - Institute of the month

Quest Academy is a professional Bangalore based NEET and JEE (Main + Advanced) training institute. The academy was incorporated in 2015 to cater to the needs of students, who aim to crack competitive exams by connecting with the best brains around. The institute helps students enhance their skills and capabilities through...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Find Class 10 Tuition near you
Class 10 Tuition in Delhi
Class 10 Tuition in Bangalore
Class 10 Tuition in Hyderabad
Class 10 Tuition in Kolkata
Class 10 Tuition in Mumbai
Class 10 Tuition in Chennai
Class 10 Tuition in Pune
Class 10 Tuition in Lucknow
Class 10 Tuition in Noida
Class 10 Tuition in Jaipur
Online Tuition Class 10

Looking for Class 10 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you