Math, asked by pradhananushri9, 10 months ago

Cos 70° - Sin 20° please explain it in step by step

Answers

Answered by mondalpabitra712

1

Answer:

=cos(90°-20°) -sin20°

=sin20°-sin20°=0°

Answered by samyakbhansali2004

1

Answer:

ans 0

Step-by-step explanation:

since cos 70 and sin 20 are the same.

for this you need to refer to trigo graph

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