question
Find the value of sin^4teta + 2 sin^2teta
(1-1/cosec^2teta)+cos^4teta=
Answers
Answered by
0
Answer:
1
Step-by-step explanation:
sin^4 θ+2sin^2 θ(1−1cosec^2 θ)+cos^4 θ
=sin^4 θ+2sin^2 θ(1−sin^2 θ)+cos^4 θ
=sin^4 θ+2sin^2 θcos^2 θ+cos^4 θ
=(sin^2 θ+cos^2 θ)2
=1^2
=1
Similar questions