Home > Algebra > jee_main_2026_april_5_shift_1 > d5394794-84d4-4434-a83f-09630a0c3962

Not the exact question you were looking for?

Paste your question to our Mathbee AI Mentor below to get an instant step-by-step solution.

Algebra

Arithmetic Progressions, Sum of Series

jee_main_2026_april_5_shift_1

Grade 12

Question:

The sum of the first 8 terms of the AP: 2, 5, 8, 11, ... is:

Step-by-Step Solution

Key Concept: S_n = n/2[2a + (n-1)d].

Step 1: S_8 = 8/2[2(2) + (8-1)3] = 4[4 + 21] = 4 × 25 = 100.

Correct Answer: 100

Mathbee AI Mentor (Free Demo)

Confused by the solution? Ask the AI to explain a specific step, tell you where you went wrong, or break down the key trap in this question.