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|a+kb| = 5 find values of k
a is 2i+6j b is 2i-4j
<@&791435371564892232>
$\sqrt{(2+2k)^2 + (6-4k)^2}$ = 5
clarence
why?
the modulus of a vector $(ai + bj) = \sqrt{a^2 + b^2}$
proven patrol
warped path
frozen onyx