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Q.

The orthocentre of the triangle formed by the points A(acosα,asinα) B(acosβ,asinβ) C(acosγ,asinγ) is

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a

(cosα+cosβ+cosγ,sinα+sinβ+sinγ)

b

[a(cosα+cosβ+cosγ),a(sinα+sinβ+sinγ)]

c

[a(cosα+sinβ+sinγ),a(sinα+cosβ+cosγ)]

d

(cosαcosβcosγ,sinγsinβsinγ)

answer is B.

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Detailed Solution

If S = 0 the H = 3G
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