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The sine of the angle between the vector...

The sine of the angle between the vectors `veca=3hati+hatj+2hatk` and `vecb=hati+hatj+2hatk` is

A

`sqrt(5/21)`

B

`5/(sqrt21)`

C

`sqrt(3/21)`

D

`4/(sqrt21)`

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XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2023-Question
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  2. If int0^a 3x^2dx=8, then the value of a is

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  4. The order and degree (if defined) of the differential equation, ((d^2...

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  6. A unit vector along the vector 4hati-3hatk is

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  12. Assertions (A) :The line vecr=vec(a1)+lamda vec (b1) and vecr=vec(a2)+...

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  13. Assertions (A): All trigonometric functions have their inverses over t...

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  16. Evaluate : cos^-1[cos(-(7pi)/(3))]

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