thanq integral.........
if x=a(p+sin p),
y=a(1-cos p)
find dy/dx
ans=tan p/2
i m not getting it.pls help dosto...
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3 Answers
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·2009-02-08 08:33:56
dx/dp=a(1+cosp)
dy/dp=asinp
dy/dx= sinp/(1+cosp)
sinp=2sinp/2 cosp/2
cosp+1=2sin2p/2
u get d ansewr
:)
MATRIX
·2009-02-08 11:22:23
hey integration
cosp+1=2sin2p/2
Thus
dy/dx=(2sinp/2*cosp/2)/2sin2p/2
=(cosp/2)/sinp/2
=cotp/2
Anuj the Answer is cotp/2 and not tanp/2