sin cos(90-o)+coso sin(90-o) expand
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Answered by
1
Answer:
sin2 tita + cos2 tita !!!
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Answered by
1
Answer:
1
Step-by-step explanation:
sin cos(90-Φ)+cos sin(90-Φ)
sin sinΦ+cos cosΦ
sin^2Φ+cos^2Φ
=1
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