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In an AP if the sum of 1st n terms is given by sn=3/2n^2 5n.find the nth term of the AP and hence find 2(an)?
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In an AP if the sum of 1st n terms is given by sn=3/2n^2 5n.find the n...
The sum of n terms of an A.P. = 3n2+5n

then sum of n-1 terms= 3(n-1)2+5(n-1)

So nth term of A.P will be Tn=3n2+5n- 3(n-1)2-5(n-1)= 3n2+5n-3n2-3+6n-5n+5=6n+2

in this way by putinng values of n= 1,2,3,4,5,6,7,_______n-1, n

we will get the AP as 8,14,20,26,32,38,44,____and the 16th term will be= 6*16+2=98
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In an AP if the sum of 1st n terms is given by sn=3/2n^2 5n.find the nth term of the AP and hence find 2(an)?
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In an AP if the sum of 1st n terms is given by sn=3/2n^2 5n.find the nth term of the AP and hence find 2(an)? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about In an AP if the sum of 1st n terms is given by sn=3/2n^2 5n.find the nth term of the AP and hence find 2(an)? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In an AP if the sum of 1st n terms is given by sn=3/2n^2 5n.find the nth term of the AP and hence find 2(an)?.
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