Solve :- `(1/5 + i2/5) - (4 + i5/2)`

Express of the complex number in the form a + i b . (1/5+i2/5)-(4+i5/2)

Solve (i) 2 - 3/5 (ii) 4 + 7/8 (iii) 3/5 + 2/7 (iv) 9/11 - 4/5 (v) 7/10 + 2/5 + 3/2 (vi) (2) 2/3 + (3) 1/2 (vii) (8) 1/2 - (3) 5/8

Solve : (i) -2 le ||x^(2) +1| -3 | le 7 (ii) |x^(2) - 4x| le 5

" Solve : (3x)/(4)-(2x+5)/(3)=(5)/(2)

Express each of the following in the form a+i b :(1/5+2/5i)-(4+5/2i)

Find the cube of : (i) 2 2/5 (ii) 3 1/4 (iii) 0. 3 (iv) 1. 5

Evaluate : (i) (2)/(3)-(4)/(5)

Show that (√5+i √2)/(√5-i√2) + (√5-i√2)/(√5+i√2) is real.

Solve the following. 2/5+2 4/5

Express the following in the form a+bi (sqrt3 + 5i) (sqrt3 -5i)^(2) + (-4+ 5i)^(2)