3. (5 pts each) Let f(x) = V.. a) Use the limit definition of derivative to...
Let f(x) = 3x3 - 24 - 1 Use the limit definition of the derivative to calculate the derivative of f: f'(x) = Use the same formula from above to calculate the derivative of this new function (i.e. the second derivative of f): f''(x) =
Let f(x) = Find f'(a) By using the limit definition of the derivative, algebra and limit laws T 20
5. Use the limit definition to find the derivative of f(x) = V3x + 2. (6 points) 6. Find the derivatives of the following functions. Do not simplify after taking the derivative. 5 points each a. f(x) = (4x2 +1) c. h(x) = arcsin(3x2+ 2x-1) b. h(x) = 3sec(x2)
3. Let f(x) = (a) (15pts) Use the definition of the derivative to find f'(5). (b) (5pts) Write the equation of the tangent line at (5,3).
Let f(x) = (4x + 1)2 . Using the limit definition of a derivative f'(a) = limh→0 f(a + h) − f(a) /h find f'(0)
For the function f(x)= 5x-1 , Use the limit definition of the derivative to find f (2) Note: You should first use find the derivation of the function; then replace x by 2 in the final answer.
#23. Use the limit definition of the derivative to show why f(x) = (x - 5) is NOT differentiable at x = 5. (Hint: Compare the left- and right-hand limits of lim nits of lim f(5+h)-f(5) 102.) Is f(x) = (x - 5)% continuous at x = 5? What does the tangent line at the point (5,0) look like? 0
3. a) Let f(x) = 2x3 – 4.. Use only the definition of derivative to compute f'(1). b) Using only the definition of right derivative, show that if f(x) = x1/4 then f4 (0) does not exist.
(a) Let f(x) = 3x – 2. Show that f'(x) = 3 using the definition of the derivative as a limit (Definition 21.1.2). 1 (b) Let g(x) = ? . Show that y that -1 g'(x) = (x - 2)2 using the definition of the derivative as a limit (Definition 21.1.2).
3. Use the definition of the derivative (i.e. evaluate the appropriate limit) to find the derivative of the function y(x)= 8x - 7 at the point P(4, 5).