Question

Calculate the sum of 3+12+48+....(to the next 10 terms)

Answer 1

The sum of the geometric series is 1048575

Explanation:

`S_n=(a_1(r^n-1))/(r-1)\\ \\S_(10)=(3(4^(10)-1))/(4-1)\\ \\S_(10)=(3(1048576-1))/(3)\\ \\S_(10)=1048575`