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The angle made by the vector vecA=2hati+...

The angle made by the vector `vecA=2hati+3hatj` with Y-axis is

A

`tan^(-1)3//2`

B

`tan^(-1)2//3`

C

`cos^(-1).(3)/(sqrt(13))`

D

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

Text Solution

Verified by Experts

The correct Answer is:
B, C
`cos theta= ((2hati + 3hatj ).hatj)/(sqrt(4 + 9 xx1))= (3)/(sqrt(13))`
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