Question

E = {x: x = 2n²+1, -3 _<_< 3,n € z}​

Answer 1

Answer:

E = { 1,3,9}

Step-by-step explanation:

x = 2n² + 1

n = -2

=> x = 2(-2)² + 1 = 8 + 1 = 9

n = -1

=> x = 2(-1)² + 1 = 2 + 1 = 3

n = 0

=> x = 2(0)² + 1 = 0 + 1 = 1

n = 1

=> x = 2(1)² + 1 = 2 + 1 = 3

n = 2

=> x = 2(2)² + 1 = 8 + 1 = 9

E = { 1,3,9}

Hope it helps you:)