Question

9. If A=121 – 16j and B=-24i +10j what is the
direction of the vector C = 2A-B ?​

Answer 1

Answer:

If vector A = 12i – 16j and vector B = –24i + 10j, what is the direction of the vector C = 2A – B?

Solution

= 2 – = 2(12 – 16 ) − (– 24 + 10) = 48 – 42

= tan−1

−42

48 = − tan−1 0.875 ≈ −41.2°

The direction of the vector C = 2A – B is 41.2° below the positive x-direction.

Explanation:

It is 12i and not 121......