Question

(X-y) (x²+xy+y²) equals
(C) x³-y³

Answer 1

Answer:

Step-by-step explanation:

4. If y = (sin-¹ x)², prove that (1-x²)y² - xy₁ - 2 = 0 and deduce that (1-x²) Yn+2 - (2n + 1)xYn+1 -n₂yn = 0.