Let X and Y are real numbers such that sinX/sinY = 3 and cosX/cosY = 1/2.

Question

Find the value of [sin2X/sin2Y] + [cos2X / cos2Y]?

 

PLEASE WRITE THE STEPS CORRECTLY. The options are :-

a) 49/58

b) 41/58

c) 51/58

d) None of these  

 

Answer 1

To find the value of

• Step- 1 Find the value of
   

Answer 2

• Step - 2  Find the value of
   

now find the values of

• 

• 

 

 

Substitute the values of in

Answer 3

Continuous..

• Step - 3

Now the value of

Comments

Option a is correct answer.