Question

anawer. Hal kar rhi h

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Answer 1

Answer:

hope my answer helps you.............

Answer 2

Step-by-step explanation:

sin x sin 3x --------- + --------- ::: tan 2x

cos x cos 3x

tan x + tan 3x ::: tan 2x

tan (x+3x) ::: tan 2x

then put the formula of tan(a+b)

okkkkkk

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