The value of $x$ satisfying ${\log _a}x + {\log _{\sqrt a }}x + {\log _{3\sqrt a }}x + .........{\log _{a\sqrt a }}x = \frac{{a + 1}}{2}$ will be
$x = a$
$x = {a^a}$
$x = {a^{ - 1/a}}$
$x = {a^{1/a}}$
Find the sum of all natural numbers lying between $100$ and $1000,$ which are multiples of $5 .$
If $1,\,\,{\log _9}({3^{1 - x}} + 2),\,\,{\log _3}({4.3^x} - 1)$ are in $A.P.$ then $x$ equals
The sum of the integers from $1$ to $100$ which are not divisible by $3$ or $5$ is
The sum of integers from $1$ to $100$ that are divisible by $2$ or $5$ is
Write the first five terms of the sequences whose $n^{t h}$ term is $a_{n}=\frac{2 n-3}{6}$