3,8,13,18
d=5
T50 S50
T50=T1+49d
T50=3+245
T50=248
S50=
S50=[50(3+248)]➗2
S50=6275
After class I learned arithmetic progression and the arithmetic of arithmetic progression and how to solve questions .
3,8,13,18
d=5
T50 S50
T50=T1+49d
T50=3+245
T50=248
S50=
S50=[50(3+248)]➗2
S50=6275
After class I learned arithmetic progression and the arithmetic of arithmetic progression and how to solve questions .