Math, asked by preetham65, 11 months ago

The period of sin'3 x + cos'3 x is​

Answers

Answered by Pakcricket1000
2

Answer:

cos3x + sin3x = (1/2)(cos x + sin x)(2 - sin 2x)

                    = (1/2)(cos x + sin x)(2 - 2sin x cos x)

                    = (cosx + sin x)(1 - sin x cos x)

                    = cos x + sin x - sin x cos2x - sin2x cos x

                    = cos x - sin2x cosx + sin x - sin x cos2x

                    = cos x(1 - sin2x) + sin x(1 - cos2x)

                    = cos x (cos2x) + sin x (sin2x)

                    = cos3x + sin3x

Step-by-step explanation:

Answered by prathvik85
1

The peroid is 1 becuase if sin is max then cos is minimum

Similar questions