Exercise 5.1 Question Number 11 – Class 11 Maths NCERT Solution

11. 4 – 3i

Multiplicative Inverse of any Complex Number of form a + ib is equals to 1/a + ib
⇒ Multiplicative inverse of 4 – 3i is equals to 1/4 – 3i

simplifying 1/(4 - 3i)

Thus Multiplicative Inverse of 4 – 3i is 4/25 + 3i/25

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