Question

Sin^2(90-teta)+cos^2(90-teta)=

Answer 1

Answer:

Sin^2(90-@)+cos^2(90-@)

= cos²@ + sin²@

= 1

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Answer 2

Answer:

1

Step-by-step explanation:

Sin^2(90-theta) +cos^(90-theta)

=cos^2theta+sin^2theta..... (since sin(90-theta) = cos theta and cos(90-theta) =sin theta..

=1...... since (sin^2theta+cos^2theta=1)