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prove that 2sinAcosA=sin2A

Note by Bhavanshu Jain
2 years, 7 months ago

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its too simple, what u have to do is:- we know that (or can easily proof that) sin(A+B)=cosAsinB+cosBsinA, hence sin2A=sin(A+A)=cosAsinA+cosAsinA=2cosAsinA hence proved..... Mrigank Krishan · 2 years, 7 months ago

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Will the sum and difference of sine considered here? :) Marc Vince Casimiro · 2 years, 7 months ago

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