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IF THE SECOND AND FORTY FIFTH TERM OF AN AP IS 10 AND 96 RESPECTIVELY. FIND THE FIRST TERM AND COMMON DIFFERENCE.ALSO FIND THE SUM OF FIRST FIFTEEN TERMS

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T45-T2 = 43d = 86
d=2

I expect now you can find a, and of course,

S45 = a + 44/2 (2*10 + 43d)
or
S45 = 45/2 (2a+44d)

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