Question

Sin²+cos⁴=sin⁴+cos² prove that

Answer 1

Answer:

Step-by-step explanation:

what we have to prove ??

please give questions completely .

Answer 2

Sin²+cos⁴

L.H.S

=sin²Ө + cos²Ө cos²Ө

=1 - cos² Ө + cos²Ө cos²Ө

=1 - cos² Ө + (1 - sin²Ө)(1 - sin²Ө)

=1 - cos² Ө + 1 - 2sin²Ө + (sinӨ)^4

=sin²Ө + 1 - 2sin²Ө + (sinӨ)^4

=1 - sin²Ө + (sinӨ)^4

=cos²Ө + (sinӨ)^4

=R.H.S