Question

If R = {x, y}: x, y ∈ z, x² + y² = 64}, then, write R in roster form.

Answer 1

    Given, R = {x,y}: x, y ∈ z , x² + y² = 64} 

∵ x ²+ y² = 64 ⇒ y² = 64 – x 

    ∴  R = {(0, 8), (0, - 8), (8, 0), (- 8, 0)