Kaleb's Blog

My Riverside Rapid Digital Portfolio

$3,5,7,9,11,13$

$T_{50}=2\cdot49+3$

$T_{50}=101$

Last term + First term x number of terms $\div2$ .

$S_{50}=(t_{50}+3)\cdot25$

$S_{50}=(101+3)\cdot25$

$S_{50}=104\cdot25$

$S_{50}=2600$