If \( 5^{2} \cdot 5^{4} \cdot 5^{6} \cdots 5^{2 n}=(0.04)^{-28} \), then \( n \) is equal to....
If \( 5^{2} \cdot 5^{4} \cdot 5^{6} \cdots 5^{2 n}=(0.04)^{-28} \), then \( n \) is equal to
\( \mathrm{P} \)
(1) 7
W
(2) 5
(3) 6
(4) 3
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions
| 2024-01-21 | The numbers \( a, b, c \) and \( A, B, C \) are in \( A P \). The common difference of the secon.... |
| 2024-01-21 | Let \( x \) and \( y \) be real numbers such that \( x, x+2 y \) and \( 2 x+y \) are in \( A P \.... |
| 2024-01-21 | Three numbers are in \( A P \). If 8 is added to the first number, we get a \( G P \) with sum o.... |
| 2024-01-21 | Let \( x \) and \( y \) be real numbers such that \( x, x+2 y \) and
\( 2 x+y \) are in \( A P \.... |
| 2024-01-21 | If the sum of the first \( n \) terms of an \( A P \) is \( \mathrm{cn}^{2} \), then the
sum of .... |
| 2024-01-21 | In an \( A P \), if \( s_{n} \) is the sum of the first \( n \) terms ( \( n \) is odd)
and \( S.... |
| 2024-01-21 | A total of \( n \) arithmetic means are inserted between \( x \) and \( 2 y \) and further \( n .... |
| 2024-01-21 | The arithmetic mean of two numbers is \( 18 \frac{3}{4} \) and the
positive square root of their.... |
| 2024-01-21 | If \( S_{1}, S_{2}, S_{3}, \ldots \ldots ., S_{p} \) are the sums of first \( n \) terms of \( p.... |
| 2024-01-21 | If the reciprocals of the roots of the equation
\( 10 x^{3}-a x^{2}-54 x-27=0 \) are in AP, then.... |
| 2024-01-21 | If \( 5^{2} \cdot 5^{4} \cdot 5^{6} \cdots 5^{2 n}=(0.04)^{-28} \), then \( n \) is equal to.... |
| 2024-01-21 | The difference between the fourth and the first term of a GP is 52 and the sum of the first thre.... |
| 2024-01-21 | The \( m^{\text {th }} \) term of an AP is \( a \) and its \( n^{\text {th }} \) term is \( b \).... |
| 2024-01-21 | If the sum of the roots of the quadratic equation
\( a x^{2}+b x+c=0 \) is equal to the sum of t.... |
| 2024-01-21 | The number of terms in an \( A P \) is even. The sum of the odd terms is 24 and the sum of the e.... |
| 2024-01-21 | Match the following columns:
\begin{tabular}{|l|l|l|l|}
\hline \multicolumn{3}{|c|}{ Column-I } .... |
| 2024-01-21 | The sum of the first \( n \) terms of two arithmetic series are in the ratio \( (7 n+1):(4 n+27).... |
| 2024-01-21 | If \( m \) be unit digit of \( \left(27^{50}+18^{50}\right) \) and \( n \) is the
remainder when.... |
| 2024-01-21 | For some positive integer \( n \)
\[
\left(1+x+x^{2}\right)^{n}=a_{0}+a_{1} x+a_{2} x^{2}+\ldots.... |
| 2024-01-21 | If \( \sum_{r=0}^{10}\left(\frac{r}{{ }^{10} C_{r}}\right)=20 \), find the value of \( \sum_{r=0.... |
| 2024-01-21 | Let \( F(n)=\sum_{r=0}^{n-1}\left(\frac{{ }^{n} C_{r}}{{ }^{n} C_{r}+{ }^{n} C_{r+1}}\right) \),.... |
0