Let a1,a2,a3.... be AP with a1=7 and c.d 8. Let T1,T2,T3 be such that T1=3 and T(N+1)-TN=aN | IITJEE

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Let a1,a2,a3.... be an arithmetic progression with a1=7 and common difference 8. Let T1,T2,T3 be such that T1=3 and T(N+1)-TN=aN for N greater than or equal to 1. Then which of the following is/are True?
A. T20 = 1604
B. Sum of Tk from k=1 to 20 = 10510
C. T30 = 3454
D. Sum of Tk from k=1 to 30 = 35610
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intro music not necessary. just irritates

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