0

Guest

Courses New

Please answer to the question asap pls with all the steps so that i can understand

Please answer to the question asap pls with all the steps so that i can understand

Question Image
Grade:8

1 Answers

Aditya Gupta
2081 Points
4 years ago
hello harshitha thanks 4 d ques.
we can write the eqn as
4s^2 + 1/s^2 + t^2 + 1/t^2= 6 where s= sinx and t= tanx
or (4s^2 + 1/s^2 – 4) + ( t^2 + 1/t^2 – 2)= 0
(2s – 1/s)^2 + (t – 1/t)^2= 0
since the sum of 2 squares can be zero IFF both of them are zero, so
2s – 1/s= 0 and t – 1/t= 0
or s^2= ½ and t^2= 1 or s^2/c^2= 1 or s^2= c^2 or 2s^2= 1 or s^2= ½ 
so, both the conditions give us the same result:
s^2= ½ 
or sin^2x= sin^2(pi/4)
or x= npi ± pi/4
option 1
kindly approve :)

Think You Can Provide A Better Answer ?

Other Related Questions on Discuss with colleagues and IITians

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More