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The modulus of complex number (3 + 4i)/(1 - 2i) Options: (a) 5

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The modulus of complex number (3 + 4i)/(1 - 2i) is

Options:

(a) 5

(b) √5

(c) 1/√5

(d) 1/5
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The correct answer is (b) √5
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