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What is the angle between veca and the r...

What is the angle between `veca` and the resultant of `veca+vecb` and `veca-vecb` ?

A

0

B

`"tan"^(-1)(a)/(b)`

C

`"tan"^(-1)(b)/(a)`

D

`"tan"^(-1)((a-b))/((a+b))`

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AAKASH INSTITUTE-VECTOR ALGEBRA-ASSIGNMENT (SECTION-A)
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  3. What is the angle between veca and the resultant of veca+vecb and veca...

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  4. What is the magnitude of the scalar product of the following vectors ...

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  6. ABCD is parallelogram. If L and M are the middle points of BC and CD, ...

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  7. If veca=hati+hatj, vecb=hatj+hatk, vec c hatk+hati, a unit vector par...

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  8. p1 hati+p2hatj is a unit vector perpendicular to 4hati-3hatj if

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  9. If vecOA=veca,vecOB=vecb,vecOC=2veca+3vecb,vecOD=veca-2vecb, the lengt...

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  10. Let veca=3hati-hatj, vecb=hati-2hatj, vec c=-hati+7hatj and vecp=veca+...

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  11. If vecaxxvecb=vecaxxvec c,veca ne 0, then

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  12. Given two vectors veca=2hati-3hatj+6hatk, vecb=-2hati+2hatj-hatk and...

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  13. The area of parallelogram whose diagonals coincide with the following ...

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  14. Let veca,vecb ,vecc be three nonzero vectors such that veca+vecb+vecc...

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  15. If vecaxxvecb=vecc,vecb xx vecc=veca, where vecc != vec0, then

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  16. ABCDEF is a regular hexagon where centre O is the origin, if the posit...

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  17. hati.(hatjxxhatk)+hatj.(hatixxhatk)+hatk.(hatixxhatj) is equal to

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  18. For any vector veca the value of (vecaxxhati)^2+(vecaxxhatj)^2+(vecaxx...

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  19. If |vecaxxvecb|=2,|veca.vecb|=2, then |veca|^(2)|vecb|^(2) is equal to

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  20. |(vecaxxvecb)|^(2) is eqaul to

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