Question

Write first four terms of the A.P. when the first term a= -2 and

the common difference d=2.​

Answer 1

Step-by-step explanation:

here is your answer solved step by step

Answer 2

Explanation,

Given,

• First term (a) = -2
• Common difference (d) = 2

To Find,

• Write first four terms of an AP.

Solution,

t1 = a = -2

⇒ t2 = t1 + d = -2 + 2 = 0

⇒ t3 = t2 + d = 0 + 2 = 2

⇒ t4 = t3 + d = 2 + 2 = 4

Therefore,

The four terms are -2,0,2,4,..... respectively.

For information,

• an = a + (n - 1)d
• Sn = n/2 × (2a + (n - 1)d)
• Sn = n/2 × (a + l)