Question

Express in A+iB form ,(7+3i)+(-5+2i)

Answer 1

We have,

$\quad \: (7 + 3i) + ( - 5 + 2i) \red{ \longleftarrow \bf question} \\ \\ = 7 + 3i - 5 + 2i \\ \\ = 7 - 5 + 3i + 2i \\ \\ = (7 - 5) + (3 + 2)i \\ \\ = (2) + (5)i \\ \\ = 2 + 5i \red{ \longleftarrow} \blue{\bf{result}} \\ \\ \sf \underline{ on \: comparing \: the \: result \: with \: (a + bi) \: we \: get - } \\ (a + bi) = (2 + 5i) \\ \over\underline\mathfrak{hence} \\ \green{\bf{answer}} \begin{cases} a = 2 \\ b = 5 \end{cases}$

$\mid \underline{\underline{\LARGE\bf\green{Brainliest \: Answer}}}\mid$

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