the number 593 is a term of the ap formed by the term of 5,9,13..., is it true? check it and find the number of this term
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Answer:
a=5
d=4
an= a+(n-1 )× d
593=5+(n-1)×4
593-5=(n-1) ×4
588=(n-1)×4
588÷4=n-1
147=n-1
n=148
hence , 593 is a term of the ap since n is a whole number
And , 593 is the 148th term
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