Math, asked by vineetfaskeX, 19 days ago

Why 2 * sin (i/2) * cos (i/2) = sin i ?

Answers

Answered by amitsharma777222999

0

Step-by-step explanation:

sin(A+B)=sinAcosB+cosAsinB

putA=B

sin2A=sinAcosA+cosAsinA

sin2A=2sinAcosA

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