Question

please solve this question

*WITH FULL EXPLANATION*​

Answer 1

Maximum value is A-B

maximum value of cos(theta)=1

by formula, Magnitude of vector A - Vector B= (root over) √A²+B²-2.A.Bcos(theta=0°)

√A²+B²-2AB

√(A-B)²

=A-B

Answer 2

Explanation:

Answer:

r = root of (A^2+ B^2 -2ABcos180)

= root of {A^2 + B^2 -2AB (-1)}

= root of ( A^2+ B^2 +2AB)

= root of {(A+B)^2}

= (A+B)

the answer is (A+B)