Question

BRAINLIEST ASAP! PLEASE HELP ME :)

Answer 1

Answer:

sin⁴x - sin²x

sin²x(sin²x - 1)

(1 - cos²x)(1 - cos²x - 1)

(1 - cos²x)(-cos²x)

cos⁴x - cos²x = RHS

Answer 2

Step-by-step explanation:

Using cos ^2x+sin^2 x = 1  

RHS = cos ^2x+sin^2 x = 1  

Therefore,

LHS  = cos ^2 x − cos ^4 x  

= cos ^2 x ( 1 − cos ^2 x )  

=  cos ^2 x sin ^2 x  

=  ( 1 − sin ^2 x ) sin ^2 x  

= sin ^2 x − sin ^4 x  

= RHS