Question

21.
Let A./ =3, A,/=5 and A, +Ā,=5. The value of (2A, +3A,) (3A, -2A,) is :-
(A) -112.5
(B)-106.5
(C) -118.5
(D) 99.5​

Answer 1

Answer:

A_(2) are two vectors such that |A_(1)| = 3 , |A_(2)| = 5 and |A _(1)+A_(2)| = 5 the value of (2A_(1)+3A_(2)).