Skip to main content
ถึงการสอบครั้งถัดไป 14–15 พฤศจิกายน 2569:

Sequence Visualization: Arithmetic & Geometric

Loading interactive simulation...

Key Formulas

an=a1+(n−1)da_n = a_1 + (n-1)dan=a1⋅rn−1a_n = a_1 \cdot r^{n-1}Sn=n(a1+an)2S_n = \frac{n(a_1+a_n)}{2}

Related Practice

sequencearithmetic sequencegeometric sequencepartial sumCSCA math