Questions
The magnitude of a given vector with end points (4, -4, 0) and (-2, -2, 0) must be
a
6
b
52
c
4
d
210
detailed solution
Correct option is D
r→ = r2→−r1→= (−2i^−2j^+ok^) - (4i^−4j^+0k^)⇒ r→ = −6i^+2j^+0k^∴ |r→| = −62+(2)2+02= 36+4 =40 = 210Talk to our academic expert!
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A vector a is turned without a change in its length through a small angles d. The value of and a are, respectively;
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