12th Maths Guide Solution Chapter 2 Complex Numbers Exercise 2.3

Question no 1: If z1 = 1 – 3i, z2 = -4i, and z3 = 5, show that

(i) (z1 + z2) + z3 = z1 + (z2 + z3)

Solution:-

12th Maths Guide Solution Chapter 2 Complex Numbers Exercise 2.3

(ii) (z1 z2)z3 = z1(z2 z3)

Solution:-

Exe 2.3 1 ii

Question no 2: If z1 = 3, z2 = 7i, and z3 = 5 + 4i, show that

(i) z1(z2 + z3) = z1 z2 + z1 z3

Solution:-

Exe 2.3 2 i

(ii) (z1 + z2)z3 = z1 z3 + z2 z3

Solution:-

Exe 2.3 2 ii

Question no 3: If z1 = 2 + 5i, z2 = – 3 – 4i, and z3 = 1 + i, find the additive and multiplicative inverse of z1, z2 and z3.

(i) z1 = 2 + 5i

Solution:-

Exe 2.3 3 i

(ii) z2 = – 3 – 4i

Solution:-

Exe 2.3 3 ii

(iii) z3 = 1 + i

Solution:-

Exe 2.3 3 iii

Leave a Reply

Your email address will not be published. Required fields are marked *