Question

n"th term of 4+9+14+................is​

Answer 1

Answer:

5n - 1

Step-by-step explanation:

a=4

d= 5

an=a+(n-1)5

= 4 + (n-1) 5

= 4 + 5n-5

= 5n-5+4

= 5n - 1

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