English, asked by diyarawal12, 7 months ago

sin70.cos80+cos70.sin80=1/2. solve it.

Answers

Answered by akashdeepsinghjadaun

0

Explanation:

sin70.cos80+cos70.sin80

=sin(70+80)

{since sinAcosB + cosAsinB = sin(A+B)}

=sin150

=sin(180-30)

=sin30

=1/2

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