Home
Class 11
MATHS
Find veca.vecb when veca=hati-2hatj+ha...

Find `veca.vecb` when
`veca=hati-2hatj+hatk" ""and"" " vecb=3hati-4hatj-2hatk`

Text Solution

Verified by Experts

The correct Answer is:
(i) 9, (ii) 4
Promotional Banner

Topper's Solved these Questions

  • VECTOR ALGEBRA-I

    FULL MARKS|Exercise EXERCISE 8.4|10 Videos

  • VECTOR ALGEBRA-I

    FULL MARKS|Exercise EXERCISE 8.5|25 Videos

  • VECTOR ALGEBRA-I

    FULL MARKS|Exercise EXERCISE 8.2|17 Videos

  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    FULL MARKS|Exercise Additional Questions Solved|19 Videos

Similar Questions

Explore conceptually related problems

Find veca.vecb when veca=2hati+2hatj-hatk" ""and"" " vecb=6hati-3hatj+2hatk

Find veca.vecb when (i) veca=hati-hatj+5hatk and vecb=3hati-2hatk (ii) veca and vecb represent the point (2,3,-1) and (-1,2,3).

Find the unit vectors perpendicular to each of the vectors veca+vecb" " and veca-vecb ,where " "veca=hati+hatj+hatk and vecb=hati+2hatj+3hatk.

Find the value lambda for which the vectors veca and vecb are perpendicular, where veca=2hati+4hatj-hatk" ""and"" " vecb=3hati-2hatj+lambdahatk

Find the value lambda for which the vectors veca and vecb are perpendicular, where veca=2hati+lambdahatj+hatk" ""and"" " vecb=hati-2hatj+3hatk

Find the magnitude of vecaxxvecb if veca=2hati+hatj+3hatk and vecb = 3hati+5hatj-2hatk .