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sabika13
 3 years ago
prove this identity: (sinx+tanx)/(cosx+1)=tanx
sabika13
 3 years ago
prove this identity: (sinx+tanx)/(cosx+1)=tanx

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hartnn
 3 years ago
Best ResponseYou've already chosen the best response.1write tan x as sin x/ cos x

sabika13
 3 years ago
Best ResponseYou've already chosen the best response.0(sinx+(sinx/cosx))/(cosx+1) idk what to do after it

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.1lets work on numerator factor out sin x , what u get ?

sabika13
 3 years ago
Best ResponseYou've already chosen the best response.0i did: (sinx+cosxsinx)/(cosx+1)

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.1\(\large sin x+sinx/cos x= (sinxcosx+sinx)/cosx \\ \large=sinx(cos x+1)/cos x\) did u get this ?

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.1that was numerator only, the denominator still is 1+cos x

sabika13
 3 years ago
Best ResponseYou've already chosen the best response.0howd you get: sinx(xosx+1)/cosx?
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