Which of the following is equivalent to `(4+6i)/(10-5i)`? (Note: `i^(2)=-1`)

Which of the following is equivalent to (4+7i)-(3-2i) ?

If u and v are complex numbers such that u=3-5i and v=-6+i , which of the following is equivalent to (u+v)^(2) ? (Note: i^(2)=-1 )

Which of the following is equivalent to (38+ 18i)/(4+6i) ?

Which of the following is equivalent to 2i(xi-4i^(2)) ?

Which of the following is equivalent to 2i^(2)+3i^(3) ?

Given that i = sqrt(-1), which of the following is equivalent to (6i^(2)-7i)+ (3+6i) ?

If i=sqrt(-1) , which of the following is equivalent to (14)/(2-sqrt(10)i) ?

Which of the following is equivalent to (10-sqrt(-12))/(1-sqrt(-27)) ? (Note: i=sqrt(-1) )

The imaginary number "I" is such that i^(2)=-1 . Which of the following options is equivalent to ((1-2i)/(2+3i)) ?