Math, asked by sragviBhushan, 1 year ago

derivation of sin (A+B)

Answers

Answered by sunil5788

0

sinAcosB+cosAsinB

we know that

sin(A+B)=cos(180/2-(A+B))

=cos ((180/2-A)-B)

=cos (180/2-A)cosB+sin(180/2-A)sinB

=sinAcosB+cisAsinB

sunil5788: may be brainlist added

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