Math, asked by hardikbhai7558, 1 year ago

If the nth term of an A.P. - 1, 4, 9, 14, .... is 729. Find the value of n.

Answers

Answered by sangita1875

0

an= a+(n-1)d
729=-1+(n-1)5. (d=a1-a2)
729+1=5n-5
730+5=5n
735÷5=n
n=147

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