Math, asked by deivadiva3, 5 months ago

prove that sin50°+sin10°=cos 20°

Answers

Answered by RvP10

1

Answer:

sin50 + sin 10 = cos20

on LHS

=2sin((50+10)/2)cos((50-10)/2)

=2sin30cos20

sin30 =1/2

=1 x 1/2 xcos20

=cos20

proved

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