Question

If the resultant of two forces (A + B) and (A - B) is
12 + B2, then the angle between these forces is:
(a) cos-1
(A? - B2)
A²+ B2
(6) cos
com la
A²+ B²
(A2 - B2)
(c) cos
com [
cox
A2+ B2
2(A2 - B2)
2(A? - B2B
A2 + B2
(d) cos​

Answer 1

Answer:

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Explanation:

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