**Question:**

If , then

equals

(a) -1

(b) 1

(c) -i

(d) i

**Solution.**

Using De Moivre’s theorem,

which in turn equals

Hence, .

More complex stuff to be continued in next blog (pun intended) ðŸ™‚

Nalin Pithwa

Mathematics demystified

July 28, 2015 – 11:23 pm

**Question:**

If , then

equals

(a) -1

(b) 1

(c) -i

(d) i

**Solution.**

Using De Moivre’s theorem,

which in turn equals

Hence, .

More complex stuff to be continued in next blog (pun intended) ðŸ™‚

Nalin Pithwa