CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Let a=4^i+3^j+^k,b=2^i+^j+2^k and c=6^i2^j3^k be three vectors. Then the magnitude of projection of a×b on c is


A
7
loader
B
487
loader
C
457
loader
D
437
loader

Solution

The correct option is A 487
a×b=∣ ∣ ∣^i^j^i431212∣ ∣ ∣
=^i(5)^j(6)+^k(2)=5^i6^j2^k
Projection of a×b on c=|a×b.c||c|=30+12+67=487

Co-Curriculars

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image