Home
Class 12
MATHS
Find |vec(a)xxvec(b)| , if vec(a)=hat(i)...

Find `|vec(a)xxvec(b)|` , if `vec(a)=hat(i)-7hat(j)+7hat(k)` and `vec(b)=3hat(i)-2hat(j)+2hat(k)` .

Text Solution

Verified by Experts

The correct Answer is:
`:. |vec(a)xxvec(b)|=sqrt((19)^(2)+(19)^(2))=sqrt(2xx(19)^(2))=19sqrt(2)`
Promotional Banner

Similar Questions

Explore conceptually related problems

Find a vector of magnitude 6 and perpendicular to both vec(a) = 2hat(i) + 2hat(j) + hat(k) and vec(b) = hat(i) - 2hat(j) + 2hat(k)

If the vectors vec(a) = 2hat(i) + hat(j) + 4hat(k), vec(b) = 4hat(i) - 2hat(j) + 3hat(k) and vec(c) = 2hat(i) - 3hat(j) - lambda hat(k) are coplanar, then findvalue of lambda