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If veca=2hati+5hatj+7hatk and vecb=hati...

If `veca=2hati+5hatj+7hatk` and `vecb=hati-hatj+5hatk`, then the vecor components of the vector `2veca-3vecb` along the coordinate axes are -

A

`13hati, -hatj, -hatk`

B

`hati, 13hatj, -hatk`

C

`-hati, 6hatj, -hatk`

D

none of these

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The correct Answer is:
B
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 3
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  20. If int f(x) dx=f(x), then int {f(x)}^(2)dx is equal to -

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