Question

please help me in iv and v ​

Answer 1

Answer:

(iv) ---- b

(v) ---- a

Explanation:

unit vector= vector/magnitude

magnitude=

$\sqrt{5 { }^{2} }+1 {}^{2} + ( - 2) { }^{2}$

$\sqrt{25 + 1 + 4}$

$\sqrt{30}$

unit vector= (5i+j-2k) /√30

Answer 2

Answer:

here's your answer

Explanation:

the answer of

iv) b

v) d