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Mathematics 20 Online
OpenStudy (anonymous):

tan x (cos x +cot x)=sin x +1

OpenStudy (anonymous):

tanx(cosx+cotx)=sinx+1 L.H.S.=tan x (cos x+cot x) =sin x /cos x (cos x+cos x /sin x) =(sin x*cos x)/cosx +sinx/cosx *cosx/sinx =sinx+1 =R.H.S

OpenStudy (anonymous):

is not hard ,surjithayer did it well

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