Question

what are the maximum and minimum value of A. B vector? ​

Answer 1

Answer:

|b|cos t which has minimum and maximum values according as cos t has minimum or maximum values i.e. 1 or (-1). Hence a+b has maximum modulus |a|+|b|, when the vectors point in the same direction and minimum modulus | |a|-|b| | when they point in opposite directions. ... Two vectors a and b are such that a=2i+j and b=3i-j.

Explanation:

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