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  • If a + ib = c + id, then A. a2 + c2 = 0 B. b2 + c2 = 0 C. b2 + d2 = 0 D. a2 + b2 = c2 + d2

If a + ib = c + id, then
A. a^2 + c^2 = 0
B. b^2 + c^2 = 0
C. b^2 + d^2 = 0
D. a^2 + b^2 = c^2 + d^2

Answers (1)

The answer is the option (d).

a+ib=c+id

|a+ib|=|c+id|

\sqrt{a^2+b^2} =\sqrt{c^2+d^2}

Squaring both sides,  a^2+b^2=c^2+d^2

Hence, d is correct

Posted by

infoexpert21

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