1. Find the approximate value of the tangent to the following functions at the given x-value. Use the algebraic method.
2. y = 1/x at x = 1
3. y = 3cos3x at x = 3
4. y = x³+ 2 at x = 4
5. y = 3^xat x = 4.

I hope this can help you m =f(x + h) - f(x)/(x + h) - x m =f(x + h) - f(x)/h