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If a + b + c = alphad, b + C + d =betaa ...

If `a + b + c = alphad, b + C + d =betaa` a and a, b, c are non-coplanar, then ` a + b + c + d` is equal to

A

0

B

p a

C

q b

D

`(p + q) c`

Text Solution

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The correct Answer is:
A
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