AE-JE Foundation EE : Engineering Mathematics Quiz - 4

If a = 2 + i and b = 2i, then a + b =

The polar form of the point P in the above graph is

If one of the complex roots of certain quadratic equation is 2 + 3i, what will be the value of its  other complex root?

What will be the roots of 4x² + 9 = 0?

Which of the following is the polar form of a complex number z = a + ib?

What will be the value of x and y if z₁ = 2 – iy and z₂ = x + 3i are equal?

What will be the multiplicative inverse of z = 2 – 3i?

What will be the value of (1+2i)(2-3i)?

Minimum integral value of k such that equation 3x² + 6x + k = 0 has no real roots is

Conjugate of  is