Question

OD a = 2i + 5j+k and b = 4i + mj + nk are collinear vectors, then find m and n. 1 and 1 Cind the unit vecto​

Answer 1

Answer:

your solution is as follows

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Step-by-step explanation:

$to \: find : \\ values \: of \: m \: and \: n \\ \\ so \: given \: vectors \: are \\ A = 2i + 5j + k \: \\ B = 4i + mj + nk \\ \\ we \: know \: that \\ when \: two \: vectors \: are \: collinear \\ their \: corresponding \: coefficients \\ are \: in \: equal \: proprtion \: \: ie \\ \\ \frac{a1}{a2} = \frac{b1}{b2} = \frac{c1}{c2} \\ \\ hence \: accordingly \\ \\ \frac{2}{4} = \frac{5}{m} = \frac{1}{n} \\ \\ \frac{2}{4} = \frac{5}{m} \: \: ; \: \frac{2}{4} = \frac{1}{n} \\ \\ 2m = 20 \: \: ; \: 2n = 4 \\ \\ m = 10 \: ;n = 2$