Question

1+5+9+13+...... in the given AP find the sum of first 30 terms​

Answer 1

Answer:

S30 = 30/2 [ 2(1) + (30 - 1) 4 ]

= 15 [ 2 + 116 ]

= 15 [ 118 ]

= 1770

Here's your answer

Answer 2

Answer:

1770

Step-by-step explanation:

Given series is in AP

first term, a= 1

common difference, d= 4

Using the formula for sum of AP series:

Sn = n/2{2a+(n-1)d}

= 30/2[2+(30-1)4]

= 15(2+116)

= 15×118

= 1770