If scalar product of vectors veca ...

If scalar product of vectors ` veca ` with vectors ` 3 hati - 5 hatk , 2 hati + 7 hatj and hati + hatj + hatk ` are respectively `-1,6,5` then ` veca ` =………

A

`3 hati + 2 hatk `

B

`3 hati + hatj + 2 hatk `

C

`hati + 3 hatj + 2 hatk `

D

` hati + hatj + hatk `

Verified by Experts

The correct Answer is:

A

ANNUAL EXAMINATION :SAMPLE PAPER
KUMAR PRAKASHAN|Exercise PART-B ( SECTION-A)|20 Videos
ANNUAL EXAMINATION :SAMPLE PAPER
KUMAR PRAKASHAN|Exercise PART-B ( SECTION-B)|16 Videos
APPLICATION OF DERIVATIVES
KUMAR PRAKASHAN|Exercise PRACTICE PAPER - 6 (SECTION - D)|2 Videos

Similar Questions

Explore conceptually related problems

Find the vector product of vectors vecA = 4hati + 2 hatJ - hatk ,vecB = hati+ 3 hatJ + 4 hatk

Show that the vectors hati-hatj-hatk,2hati+3hatj+hatk and 7hati-2hatj-4hatk are coplanar.

Dot product of a vector vec(a) with hati+hatj-3hatk,hati+3hatj-2hatk and 2hati+hatj+4hatk are 0, 5 and 8 respectively. Find the vector.

If vectors are vecA = 2 hati + 3 hatJ - hatk and hatB = 4 hati + 6 hatJ - 2 hatk , then they are .........

Find the scalar and vector products of two vectors. a = (3hati – 4hatj + 5hatk) and b = (– 2hati + hatj – 3hatk )

If the vectors 2hati-hatj+hatk,hati+2hatj-3hatk and 3hati+ahatj+5hatk are coplanar, the prove that a=-4.

Show that the vectors hati-3hatj+2hatk,2hati-4hatj-hatk and 3hati+2hatj-hatk and linearly independent.

Find lambda if the vectors hati-hatj+hatk, 3hati-hatj+2hatk and hati+lambda hatj-3hatk are coplannar.

If the vectors 6hati-2hatj+3hatk,2hati+3hatj-6hatk and 3hati+6hatj-2hatk form a triangle, then it is

If vector vecA =4 hati -6 hatJ +2hatk and vecB =6hati +8 hatj +mhatk are m utually perpendicular, m = ....