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cos alpha sin (beta-gamma)+cos beta sin ...

`cos alpha sin (beta-gamma)+cos beta sin (gamma-alpha)` `+cos gamma(sin alpha-beta)=`

A

0

B

`(1)/(2)`

C

1

D

`4 cos alpha cos beta cos gamma`

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Knowledge Check

  • Let alpha, beta, gamma are distinct real numbers. The points with position vectors alpha i + beta j + gamma k , beta i + gamma j + alpha k , gamma i + alpha j + beta k

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    are collinear

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