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Consider the parallelopiped wide sides a...

Consider the parallelopiped wide sides a = 3i + 2j + k, b = I + j + 2k and c = I + 3j + 3k then the angle between a and the plane containing the face determined by b and c is

A

`"sin"^(-1) ((1)/(3))`

B

`"Cos"^(-1) ((9)/(14))`

C

`"sin"^(-1) ((9)/(14))`

D

`"sin"^(-1) ((2)/(3))`

Text Solution

Verified by Experts

The correct Answer is:
C
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