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If a = 2m-n and b = -m +n , find the magnitude of c = 3a + 2b where m and n are two vectors inclined at 60°.

Sagot :

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Answer:a^2 +b^2 =c^2.

Step-by-step explanation:

square of magnitude of first vector + square of magnitude of second vector + twice the dot product of the two vectors whose sum's magnitude is to be found.

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