If 3sin alpha= 5sin beta
then tan(alpha+beta/2) upon tan (alpha - beta/2) equals ?
a. 1. b. 2. c. 3. d. 4

I want answer with full solution.

We have,3sinα=5sinβsinαsinβ=53sinα+sinβsinα-sinβ=5+35-3     Using componendo and dividendo2sinα+β2cosα-β22cosα+β2sinα-β2=82tanα+β2tanα-β2=4Hence, d is correct option.

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