sin 2A=2sin A cosA =2tanA ÷1+tan2A
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Sin 2A can be written as
sin(A + A)
by applying the formula sin(A +B)
we get,
= sinAcosA + cosAsinA
= 2sinAcosA
sin(A + A)
by applying the formula sin(A +B)
we get,
= sinAcosA + cosAsinA
= 2sinAcosA
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