ЁЯУв Too many exams? DonтАЩt know which one suits you best? Book Your Free Expert ЁЯСЙ call Now!


    Question

    The nth term of a sequence is n┬▓ + 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, TтВВтВА тАУ TтВБтВА = (400+60+1) тАУ (100+30+1) = 461 тАУ 131 = 330 .

    Practice Next
    More Quadratic equation Questions
    ask-question