|(1+i) (2+i) (3+i) |= - Vidyadip

MCQ

$\left|(1+i) \frac{(2+i)}{(3+i)}\right|=$

A
$-\frac{1}{2}$
B
$\frac{1}{2}$
✓
1
D
$-1$

✓

Answer

Correct option: C.

1

(C)
$\left|(1+ i ) \frac{(2+ i )}{(3+ i )}\right|=|1+ i |\left|\frac{2+ i }{3+ i }\right|=\frac{\sqrt{2} \times \sqrt{5}}{\sqrt{10}}=1$

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