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Express the complex number $(1-i)-(-1+i6)$ in the form $a+ib$

$(a)\;2-8i\qquad(b)\;2-7i\qquad(c)\;2+8i\qquad(d)\;2+7i$

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Answer : $\;2-7i$
Explanation :
$(1-i) - (-1+i6) =1 -i +1-6i $
$= 2-7i\;.$
answered Apr 9, 2014 by yamini.v
 

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