Let a=4 i- j+3 k, b=10 i+2 j- k and a vector c be such that 2( a b)+3( b c)= 0. If a c=15, then c ( i+ j-3 k)...

Question

Let a=4 i- j+3 k, b=10 i+2 j- k and a vector c be such that 2( a b)+3( b c)= 0. If a c=15, then c ( i+ j-3 k) is equal to:

Accepted Answer

(B)

JEE Main 2026 Mathematics question