Exercise 5.1 Question Number 12 – Class 11 Maths NCERT Solution

12. √5 + 3i

Multiplicative Inverse of any Complex Number of form a + ib is equals to 1/a + ib
⇒ Multiplicative inverse of √5 + 3i is equals to 1/(√5 + 3i)

simplifying 1/(√5 + 3i)

Thus Multiplicative Inverse of √5 + 3i is √5/14 – 3i/14

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