šŸ“¢ Too many exams? Don’t know which one suits you best? Book Your Free Expert šŸ‘‰ call Now!


    Question

    The nth term of a sequence is n² + 3n + 1. Find the

    difference between the 20th and 10th terms.
    A 330 Correct Answer Incorrect Answer
    B 225 Correct Answer Incorrect Answer
    C 300 Correct Answer Incorrect Answer
    D 365 Correct Answer Incorrect Answer

    Solution

    ATQ, Tā‚‚ā‚€ – T₁₀ = (400+60+1) – (100+30+1) = 461 – 131 = 330 .

    Practice Next
    ask-question