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The orthocentre of triangle formed by (a...

The orthocentre of triangle formed by `(a cos alpha, a sin alpha),(a cos beta, a sin beta),(a cos gamma, a sin gamma)` is

A

`(Sigma(-acos alpha).Sigma a sin alpha)`

B

`(Sigmaa cos alpha, Sigma a sin alpha)`

C

`Sigma(-a cos alpha),Sigma(-a sin alpha)`

D

`(Sigma(-a cos alpha),Sigma(-asin alpha))`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-STRAIGHT LINES-EXERCISE -II
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