Complex Number(Intro)

What is complex number?

• imaginary part

• real part

• real part and imaginary part

 $-2+3i.$  

What the value of real part?

• 2

• 3

• -2

• -2+3i

What the symbol of complex number?

• a

• bi

• i

• a + bi

 $i^2\ equal\ to$  

• 1

• -1

• 1

•  $\sqrt{-1}$  

• 10

• -10

• 10i

• -10i

• 1

• -1

Given cartesian form 2 - 7i, which position of QUADRANT on Argand Diagram?

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

Choose the formula for Trigonometric Form of complex numbers