1. Prove that
Sol:
2. If cos-1p + cos-1q + cos-1r = Π, then prove that p2 + q2 + r2 + 2pqr = 1.
Sol: Let Let p, q [ 0, 1]
cos-1p + cos-1q = Π - cos-1r
Writer - Dr. P. BalReddy
1. Prove that
Sol:
2. If cos-1p + cos-1q + cos-1r = Π, then prove that p2 + q2 + r2 + 2pqr = 1.
Sol: Let Let p, q [ 0, 1]
cos-1p + cos-1q = Π - cos-1r
Writer - Dr. P. BalReddy
Posted Date : 22-09-2020