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The vector a→ =(2,4) compute 3a→, ½ a→ and -2a→. Graph all four vectors on similar axis system.
Solution:
Now here are the three scalar Multiplication
3a→ = (6, 12)
½a→ = (1, 2)
- 2a→ = (-4,-8)
Here is the graph for each of these vectors.
Determine or find out the direction cosines and direction angles for a = (2, 1, -4) Solution We will require the magnitude of the vector. ||a|| = √ (4+1+16) = √ (21)
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