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The line joining A(bcosalpha,bsinalpha) ...

The line joining `A(bcosalpha,bsinalpha)` and `B(acosbeta,asinbeta)` is produced to the point `M(x ,y)` so that `A M` and `B M` are in the ratio `b : adot` Then`xcos((alpha+beta)/2)+ysin((alpha+beta)/2)`

A

`a^(2)+b^(2)`

B

0

C

1

D

`-1`

Text Solution

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The correct Answer is:
B
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