The value of ((-1 + i√3)/2)^n + ((-1 - i√3)/2)^n, where n is not a multiple of 3 and i = √-1, is - NDA Mathematics 2017 (I)

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

An urn contains one black ball and one green ball. A second urn contains one…

What is the most probable number of successes in 10 trials with probability of success…

The value of ((-1 + i√3)/2)^n + ((-1 – i√3)/2)^n, where n is not a multiple of 3 and i = √-1, is