Home > Algebra > jee_main_2026_april_8_shift_1 > 2e2b8e2a57fa4ad390bf0a88035baa15
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_8_shift_1
Grade None

Question:

The sum of the first 12 terms of the AP: 1, 4, 7, 10, ... is:

Step-by-Step Solution

Key Concept: S_n = n/2[2a + (n-1)d].
Step 1: S_12 = 12/2[2(1) + (12-1)3] = 6[2 + 33] = 6 × 35 = 210.
Correct Answer: 210
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.

Master Algebra with Mathbee

Practice this topic under real exam conditions with strict timers, or ask our AI Mentor to explain the concepts step-by-step.

Start Practicing for Free