the first term of an AP is -1 and 350 is the last term. if the common difference is 9. the first 3 term are
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Given
a= -1 l= 350 d=9 a3=?
an= a+(n-1)d
a3= -1+(3-1)9
a3= -1+(2)9
a3= -1+18
a3= 17
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