Question

37. A vector 31+4j rotates about its tail through an angle 370 in anticlockwise direction then the new vector is
1) -3i+j 2) 3-4
4) si
35​

Answer 1

Answer:

The vector is 3i + 4j so to rotate the vector first we need to find the angle θ with which it is making with the x axis. So, tanθ = y/x which will be tanθ=4/3 = 53 degree.

Explanation:

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