How do you find the absolute value of $-7+i$ ?

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Answer 1 · 2017-06-24T07:38:40

$5sqrt2$

$"the absolute value of " z=x+yi" is "$

$|z|=|x+yi|=sqrt(x^2+y^2)$

$rArr|-7+i|$

$=sqrt((-7)^2+1^2$

$=sqrt50$

$=5sqrt2$

How do you find the absolute value of -7+i-7+i?