Question

an = 5n + u find d . Arithmetic progressions​

Answer 1

..........................

Answer 2

Answer:

d=4

Step-by-step explanation:

an = 5n + u

Let n be 1,

a1 = 5(1) + u

= 6 + u

Let n be 2,

a2 = 5(2) + u

= 10 + u

d = a2 + a1

= (10 + u) - (6 + u)

= 10 + u - 6 - u

= 4