Assertion : The direction of a zero (null) vector is indeteminate.
Reason : We can have `vecAxx vecB = vecA *vecB` with `vecA ne vec0 and vecB ne vec0`.

Options

A. If both Assertion `&` Reason are True `&` the Reason is a correct explanation of the Assertion.
B. If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion `&` Reason are false.

Answer

C

Explanation

`A=sqrt(A_(x^(2))+A_(y^(2)))=sqrt((24)^(2)+(7)^(2))=25`
`|vecAxxvecB|^(2)+|vecA.vecB|^(2)=AB(sin^(2)theta+cos^(2)theta)=AB`
as `A=B=1rArr|vecAxxvecB|^(2)+|vecA.vecB|^(2)=1`