Evaluate---sin^2 48°+ sin^2 42°.
Answers
Answered by
9
sin^2 48° + sin^2 42° = sin^2 90°
= 1^2
= 1
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prateekrathpsj:
you have not shown any step. How could it help me ?
these are the only steps in this question
its 1 mark question
U cannot add 42 and 48 just like that
Answered by
26
Answer:
Step-by-step explanation:
sin(90-42)^²1+sin²42
cos^²42+sin^²42
=1
(sin^²θ+cos^²θ=1)
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