Question

What os the sum of arthematic series 1+ 3+ 5 +7 and 99 by brainly?

Answer 1

Answer:50²=2500

Step-by-step explanation: Sum of odd numbers until 3 (the second odd number) :1+3=4=2² sum of odd numbers until 5 (the third odd number) :1+3+5=9=3² abd you get the pattern. Generally [(a+1)/2]² in this case [(99+1)/2]²=(100/2)²=50²=2500