Question

34. If vectorA+vectorB = C and A+B = C, then the angle between
A and B is:
(1) 0
(2) Pie/2
(3)Pie/2
(4)Pie​

Answer 1

Answer:

90 degrees will be the angle between A and B

Answer 2

Answer:

ANSWER IS 0

ACCORDING TO VECTOR SUM FORMULA.

A^2+B^2+2ABCOS#=C^2. EQ1

ALSO A+B=C

FROM HERE A^2+B^2=C^2-2AB--. EQ2

PUT EQ2 IN EQ1

THEN

C^2-2AB+2ABCOS#=C^2

2ABCOS#-2AB=0

COS#-1=0

COS#=1

#=0.

hope it help u