The acute angle between the plane 2x+3y-...

The acute angle between the plane `2x+3y-z+7=0` and X-axis is

A

(a) `cos^(-1)((2)/(sqrt(14)))`

B

(b) `cos^(-1)((-2)/(sqrt(14)))`

C

(c) `sin^(-1)((2)/(sqrt(14)))`

D

(d) `sin^(-1)((-2)/(sqrt(14)))`

Verified by Experts

The correct Answer is:

C

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