Question

how many terms are there in a arithmatic series 1+3+5.....+73+75

Answer 1

Answer:

There are 37 terms in tge arithmetic series

Step-by-step explanation:

a=1

d=3-1=2

tn=75

a+nd=75

1+n×2=75

2n=75-1

n=74/2

n=37

Answer 2

a=1

d=3-1=2

an=75

an=a+(n-1)d

75=1+(n-1)2

74=2n-2

76=2n

n=76/2

n=38

Hope it will help you....