Start learning →

i² + i³ equals:

A1 + i
Bi
C-1
D-1 - i
Answer & Solution
Correct answer: D. -1 - i
i² = -1. i³ = i² × i = -i. **Sum:** -1 + (-i) = -1 - i.
Practise this question with Quill — AP Intermediate 1st Year →

Keep practising Complex Numbers and Quadratic Equations

Browse all Complex Numbers and Quadratic Equations questions for AP Intermediate 1st Year, or explore more Mathematics topics.

Start a Complex Numbers and Quadratic Equations lesson →
Related questions
Identify the standard form of (-i)(2i)(-i/8)³.If x + iy = (a + ib)/(a - ib), then x² + y² equals:Compute (5 - 3i)³.Find the value of i^(-39).Express (5 + √2 i)/(1 - √2 i) in the form a + ib.The multiplicative inverse of z = 2 - 3i is:The modulus |3 + i| equals:What is i^35?