10log10(1+2^(2*k))=30
2
1
+
5
−3
10log(1+2^(2*k))=30
10log(1+2^(2*k))
3-4x(2-x)=5
simplifier la fraction 96/108
\lim _{x\to \frac{1}{2}}\left(\frac{2x^2+5x-3}{6x^2-7x+2}\right)
85^23 mod 187
17^7 mod 187