Recent content by anil86

I got x = (u2 - v2) / u y = (v2 - u2) / v I differentiated them w.r.t u & v respectively & solved the given equation but I'm not getting the answer which is 0. Please view attachment for question!

I regret for the inconvenience.

Find nth derivative: Please view attachment!

Find nth derivative of following algebraic function: Please view attachment!

Please view attachment!

Hi Opalg, I solved it by first factorizing & then using De-Moivre theorem as suggested by you. Thank you. Anil

Please view attachment!

Please view attachment!

Solve equations using De Moivre's theorem: 1. x^7 + x^4 + x^3 + 1 = 0 2. x^7 - x^4 + x^3 - 1 = 0I tried multiplying with (x - 1). Also tried putting x^3 = y; didn't work.

This is a thread for complex number problems in applied mathematics. 1. Prove that: 1 + cos x + cos 2x + ...cos (n - 1)x = {1 - cos x + cos (n - 1)x - cos nx} / 2 (1 - cos x) = 1/2 + [{sin (n - 1/2)x}/2sin (x/2)]2. If a = cos x + i sin x, b = cos y + i sin y, c = cos z +...