3+6+9+12+....+300 than sn=?
Answers
Answered by
2
a = 3
d = 3
L = 300
=> a + (n-1)d = 300
=> 3 +(n-1)3 = 300
=> (n-1) 3 = 297
=> n-1 = 99
=> n = 100
S100 = 100/2 [ a + L]
= 50 [ 3 + 300]
= 50 * 303
= 15150
d = 3
L = 300
=> a + (n-1)d = 300
=> 3 +(n-1)3 = 300
=> (n-1) 3 = 297
=> n-1 = 99
=> n = 100
S100 = 100/2 [ a + L]
= 50 [ 3 + 300]
= 50 * 303
= 15150
gaurav2013c:
Don't forget to mark as brainliest if it helped you.....
Similar questions