Question

find the sumof first 10 even numbers.​

Answer 1

Answer:

first 10 even no are

2+4+6+8+10+12+14+16+18+20

110

Answer 2

Answer:

2+4+6+8+10+12+14+16+18+20=110.

explanation:

step 1= Address the formula, input parameters & values.

Input parameters & values:

The number series 2, 4, 6, 8, 10, 12, . . . . , 20.

The first term a = 2

The common difference d = 2

Total number of terms n = 10

step 2 apply the input parameter values in the AP formula

Sum = n/2 x (a + Tn)

= 10/2 x (2 + 20)

= (10 x 22)/ 2

= 220/2

2 + 4 + 6 + 8 + 10 + 12 + . . . . + 20 = 110

Therefore, 110 is the sum of first 10 even numbers.