## 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…

## Exercise 5.1 Question Number 10 – Class 11 Maths NCERT Solution

10. (- 2 – 1/3i)3 Thus (- 2 – 1/3i)3 can be written as – 22/3 + 107i/27 in the a + ib form

## Exercise 5.1 Question Number 9 – Class 11 Maths NCERT Solution

9. (1/3 + 3i)3 Thus (1/3 + 3i)3 can be written as – 242/9 – 26i in the a + bi form

## Exercise 5.1 Question Number 8 – Class 11 Maths NCERT Solution

8. (1 – i)4 In order to write (1 – i)4 in a + ib form let’s first simplify this.

## Exercise 5.1 Question Number 6 – Class 11 Maths NCERT Solution

6. (1/5 + 2i/5) – (4 + 5i/2) Thus (1/5 + 2i/5) – (4 + 5i/2) can be written as – 19/5 + (-19i/10) in a + ib form ## Exercise 5.1 Question Number 5 – Class 11 Maths NCERT Solution

5. (1 – i) – (- 1 + 6i) (1 – i) – (- 1 + 6i) = 1 – i + 1 – 6i= 2 – 7i ⇒ (1 – i) –… ## Exercise 5.1 Question Number 4 – Class 11 Maths NCERT Solution

4. 3(7 + 7i) + i(7 + 7i) 3(7 + 7i) + i(7 + 7i) = 21 + 21i + 7i + 7i2 = 21 + 28i + 7i2 3(7 + 7i) +…