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उदाहरण 13 सिद्ध कीजिए: sin (x+y) tan.x+...

उदाहरण 13 सिद्ध कीजिए: sin (x+y) _ tan.x+ tany sin(x-y) tan x-tany

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lim_(x rarr y) (tanx-tany)/(x-y)=

Prove that (sin (x +y) )/( sin (x-y)) = (tan x + tan y)/( tan x - tan y).

Prove that (sin (x +y) )/( sin (x-y)) = (tan x + tan y)/( tan x - tan y).

Prove that (sin (x +y) )/( sin (x-y)) = (tan x + tan y)/( tan x - tan y).

Prove that (sin (x +y) )/( sin (x-y)) = (tan x + tan y)/( tan x - tan y).

(dy)/(dx)tany=sin(x+y)+sin(x-y)

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Show that: sin(x−y)/sin(x+y)= (tanx−tany)/(tanx+tany)