Tag: arithmetic sequences
Questions Related to arithmetic sequences
Find $(3^{3}-2^{3})+(5^{3}-4^{3})+(7^{3}-6^{3})+$ to $10$ terms.
The sum of the series $\dfrac{1}{1.2}-\dfrac{1}{2.3}+\dfrac{1}{3.4}-..\infty$ is
Find the sum of The first $15$ multiples of $8$
The sum of the series$\dfrac{1}{2!}+ \dfrac{1}{4!}+ \dfrac{1}{6!}+$ is
The sum of $\frac{1}{3\sqrt{1}+1\sqrt{3}}+\frac{1}{5\sqrt{3}+3\sqrt{5}}+\frac{1}{7\sqrt{5}+5\sqrt{7}}+...+\frac{1}{225\sqrt{223}+223\sqrt{225}}$ is
A sum to $n$ terms of the series $\dfrac{3}{2^1 \cdot 2 \cdot 1} + \dfrac{4}{2^2 \cdot 3 \cdot 2} + \dfrac{5}{2^3 \cdot 4 \cdot 3} + \dfrac{6}{2^4 \cdot 5 \cdot 4} + ...$ is $S _n$ then
Sum to infinity of the $\dfrac{2}{3}$ - $\dfrac{5}{6}$ + $\dfrac{2}{3}$ - $\dfrac{11}{24}$+ ....... is
what is the sum of $20.08, 20.008 , 20.088$ and $20.888 ?$
The sum of digits of all numbers from 1 to 300 is equal to
the sum to infinity of the series
$1+\frac { 2 }{ 5 } +\frac { 6 }{ { 5 }^{ 2 } } +\frac { 10 }{ { 5 }^{ 3 } } +\frac { 14 }{ { 5 }^{ 4 } } +.....$ is