What are complex numbers?

A complex number is a number made up of a real and imaginary part. 

CW

Related Maths A Level answers

All answers ▸

Show that 12coshx - 4sinhx = 4e^x + 8e^-x


How do we differentiate y=a^x when 'a' is an non zero real number


Find the coordinates of the centre C and the length of the diameter of a circle with the equation (x-2)^2 + (y+5)^2 = 25


Find the equation of the tangent to the curve y=3x^3+x^2+5 at the point (1,9)