Math, asked by blacksuperman, 1 month ago

sin20°cos70°+sin20°cos110°=?

Answers

Answered by siddhima2004

2

Answer:

sin20°cos70°+sin20°cos110°

cos70°=cos(90-20)°= sin20°

cos110°=cos(90+20)°= -sin20°

=sin20°sin20°-sin20°sin20°

=0

pls mark brainliest

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