Simplify: `(7+8i)/(5+2i)`

Simplify : (1+2i)/(1-2i)-(1-2i)/(1+2i)

Simplify: 1/8-7/8

Simplify: (3)/(8)+(7)/(2)+(-3)/(5)+(9)/(8)+(-3)/(2)+(6)/(5)

Simplify: (i) 4/9-:5/6 (ii) 5/7-:10 (iii) 5 3/5-:2 1/10

Simplify : (i)" "(-2i)((1)/(6)i)" "(ii)" "(-i)(3i)((-1)/(6)i)^(3)" "(iii)" "4 sqrt(-4)+5 sqrt(-9)-3 sqrt(-16)

Simplify: 5/8-4/7

Simplify: 5/8-2/9

Simplify ( i ) (((1)/(3))^(-2)-((1)/(2))^(-3)}-:((1)/(4))^(-2)*( ii) ((5)/(8))^(-7)xx((8)/(5))^(-5)

Simplify: (i) ((2^(5))2xx7^(3))/(8^(3)xx7) (ii) (25xx5^(2)xx t^(8))/(10^(3)xx t^(4))