Level:
Project ID:
1003134705
Source Problem:
Accepted:
1
Clonable:
1
Easy:
0
Find the first term of the geometric sequence \( \{a_n\}_{n=1}^{\infty} \), if: \[\begin{aligned} a_3\cdot a_4&=-25, \\ a_4-a_3&=10. \end{aligned} \]
\( -5 \)
\( 5 \)
\( -1 \)
\( 1 \)
\( -15 \)