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The orthocentre of triangle formed by (a...

The orthocentre of triangle formed by `(acosalpha,asin alpha), (acosbeta,asinbeta),(acosgamma,asingamma) is

A

`(sum(-acosalpha)-acosalpha)`

B

`(sum acosalpha,suma sin alpha)`

C

`(sum(-acosalpha),sum(-asinalpha)`

D

`(sum(-acosalpha),sum(-asinalpha)`

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A
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