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Sin(x+y)/sin(x-y)=a+b/a-b,show that tan x/tan y=a/b

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Sin(x+y)/sin(x-y)=a+b/a-b,show that tan x/tan y=a/b

Posted by Rekha Dey 5 years, 2 months ago

CBSE > Class 11 > Mathematics

1 answers

Dolly ?️ 5 years, 2 months ago

(sin(x+y) +sin(x-y)) /(sin(x+y)-sin(x-y)) =(a+b+a-b) /(a+b-a+b) By using componando & dividendo 2sinx.cosy/2cosx.siny=a/b Sinx.cosy/cosx. siny =a/b Tanx/tany=a/b

3Thank You

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CBSE > Class 11 > Mathematics