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2·Two APs have the same common difference. The difference between their 100th terms!100, what is the difference between their 1000th terms? |
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Answer» Sol:Let two A.P's have the first terms a , a' and common difference d.Given that difference between their100th term is 100.then a + 99d - a' - 99d = 100⇒ a - a' = 100.Now difference between 1000 th term is⇒ a + 999d - a' - 999d= a - a'= 100∴ difference between 1000 th term is 100. |
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