Question

if sin thete +sin²theta=1 them cos²theta +cos⁴theta=? I WILL MARK YOU THE BRANLIEST :).

10 points

Answer 1

sin (theta) +sin ^2 (theta) =1 

sin (theta) +1-cos ^2 (theta) =1 

sin (theta) -cos ^2 (theta) =0 

sin (theta) =cos ^2 (theta) 
square both sides 
sin^2 (theta) =cos ^4 (theta) 
1-cos ^2 (theta)= cos ^4 (theta) 
cos ^4 (theta)+cos ^2 (theta)=1 

Answer 2

Hoo answer is 1
it is our IIT book question