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In an AP the sum of …

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In an AP the sum of the first n terms is n/2( 3n + 5). Find the 25th term of the AP

    • Posted by Manisha Kumari 1 year, 9 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Aryan Indani 1 year, 9 months ago

    Ans: 76 firstly put the value of n as 1 then u will get A1 then put n=2 then u will get the value of A1+ a2 then after receiving value of a2 find d then by formula of n therms u will get the value of 35 terms

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