If a =(2 i +2 j +3 k ), b =(- i +2 j + k ) and c =(3 i + j ) such that ( a + b ) is perpendicular to c , then...

Question

If a =(2 i +2 j +3 k ), b =(- i +2 j + k ) and c =(3 i + j ) such that ( a + b ) is perpendicular to c , then the value of is

Accepted Answer

(B)

MHT CET 2024 Mathematics question