find the distance between a(sin x,-b cos x ) and (-a cos x,b sin x)
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the distance between these two points is (sinx+cosx)√(a^2+b^2)
alishaagra99:
again
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answerin dwtail
using distance formula √[(-acosx-asinx)^2+ (bsinx + bcosx)^2].... taking common (cosx+sinx)^2 so cosx+sinx√(a^2+b^2)
and....more?
this is the answer.
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