Math, asked by masmasmas820, 4 months ago

4+7+10+13+..sum of the 12terms of this ap is

Answers

Answered by nightread

2

Answer:

256

Step-by-step explanation:

Arithmetic Progression (AP)

(Total numbers)/2 × (first number + last number)

= (12/2) × (4 + 37)

= 6 × 41

= 246

This formula can only be used when the numbers we have to add have the same difference.

Answered by shriyansh1004

1

Step-by-step explanation:

a = 4
d = 3
n = 12
Sn = ?

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

Sn = 12/2(2×4+(12-1)3)

Sn = 6 ( 8+ 11×3)

Sn = 6 ( 8+33)

Sn = 246

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