Question

Select all the correct expressions in the table which expressions are equivalent to the given complex number 45+2i

Answer 1

The expressions are given below:

What is complex number?

Complex numbers are numbers that consist of two parts — a real number and an imaginary number.

Given:

45+ 2i

9+4 i + 2( 4 + 7i)(1- 2i)

= 9 +4i + 2( 4 - 8i + 7i +14)

=9 + 4i + 36 - 2i

= 45 - 2i

and,

(9 + 4i )+ (36 - 2i)

=45 + 2i

Hence, learn more about complex number here:

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