Sir kindly give me a detailed solution of this question as it is taken from trigonometry, topic – trigonometric identities in which we have to show that (x/a)⅔+(y/b)⅔=1 and we have given that x=acos³θ and y=bsin³θ

RS Aggarwal, Class 10, chapter 13B, question no 6

Hope it helps you.