please help me asap
1. What the derivatives of the function tan(6x-1) with respect to x.

2. Find the derivative of the function f(x) = (3x + 4) with respect to x.

3. Find the second derivative of function f(x) = 4x² - 6x² + 7x + 1.

4. Find the real zeros of the function f(x)=x²-27.

5. The function f(x) = x² - 8x² + 6; [-3, 3]. Find on the indicated intervals the absolute maximum and minimum values.​