4.∛25*∛5-√36=∛(25*5)-6=∛125-6=5-6=-1
Ответ:-1.
5.
y=3x^5+7x*4-cos x
y`=15x^4+28x^3+sin x
9.
-1 \\ x-2>0 \\ x>2 \\ \\ x-2> (\frac{1}{4})^{-1} \\ x-2>4 \\ x>6 \\ \\ x=(6; +\infty)" alt=" log_{ \frac{1}{4} } (x-2)>-1 \\ x-2>0 \\ x>2 \\ \\ x-2> (\frac{1}{4})^{-1} \\ x-2>4 \\ x>6 \\ \\ x=(6; +\infty)" align="absmiddle" class="latex-formula">