Question

find the numner of term in the A. P 1,3,5......1001​

Answer 1

Given

first term(a)=1

last term(l)=1001

common difference (d)=2

We know

l=a+(n-1)d

=>1001=1+(n-1)2

=>1000/2=n-1

=>500+1=n

Thus number of terms =501

Answer 2

Step-by-step explanation:

an=a+(n-1)d

1001=1+(n-1)(3-1)

1001-1=(n-1)2

1000/2=n-1

500=n-1

n=501.

so, Number of terms is 501