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Find a vector vec a of magnitude 5sqrt(2...

Find a vector `vec a` of magnitude `5sqrt(2)` making an angle `pi/4` with x-axis , `pi/2` with y-axis and an acute angle `theta` with z-axis

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The correct Answer is:
`vec(a)=5hat(i)pm (1)/(sqrt(2))hat(k)`.
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MODERN PUBLICATION-VECTOR ALGEBRA -Frequently Asked Questions (Example)
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  19. Largange's Identify. Prove that (vec(a)xx vec(b))^(2)=|vec(a)|^(2)|vec...

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