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SinA sin(90-A)-cosAcos(90-A)

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SinA sin(90-A)-cosAcos(90-A)
  • 2 answers

Ankita ?? Arpita☺️ 7 years, 6 months ago

O

Krituk Nikhra 7 years, 6 months ago

SinA sin(90-A)- cosA cos)90_A) =SinA cosA-cosA sinA = 0
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