2010004905

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Project ID: 
2010004905
Source Problem: 
Accepted: 
0
Clonable: 
1
Easy: 
0
The \( n \)th term of a geometric sequence is \( 4^{n-1}\cdot5^{2-n} \). Find the second term and the common ratio.
\( a_2=4 \), \( q=\frac45 \)
\( a_2=4 \), \( q=\frac54 \)
\( a_2=5 \), \( q=\frac45 \)
\( a_2=4 \), \( q=20 \)
\( a_2=5 \), \( q=20 \)