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If A=B+C have scalar magnitudes o 5,4,3 ...

If A=B+C have scalar magnitudes o 5,4,3 units respectively , then find the between A and C.

A

`cos^-1(3//5)`

B

`cos^-1(4//5)`

C

`pi//2`

D

`sin^-1(4//5)`

Text Solution

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The correct Answer is:
A
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