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If veca and vecb are two vectors and ang...

If `veca and vecb` are two vectors and angle between them is `theta` , then

A

`|atimesb|^(2)+(a*b)^(2)=|a|^(2)|b|^(2)`

B

`|atimesb|=(a*b), if theta=(pi)/(4)`

C

`atimesb=(a*b)hat(n)`, (where `hat(n)` is a normal unit vector), if `theta=(pi)/(4)`

D

`|atimesb|*(a+b)=0`

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A, B, C, D
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