Question

The unit vector along î– 2ị is :
(1) î-21/sqrt5
(2) î+j(cap)
(3)î+j(cap)/sqrt2
4)î-j(cap)/sqrt5
please explain with method​

Answer 1

Answer:

4) i(cap) - j(cap) /sqrt5

Answer 2

Answer:

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$\huge\mathfrak\red{hello} \:$