Derivative rules Suppose u and v are differentiable functions at t = 0 with u ( 0 ) = 〈 0 , 1 , 1 〉 , u ' ( 0 ) = 〈 0 , 7 , 1 〉 , v (0)= 〈 0 , 1 , 1 〉 , and v ' (0)= 〈 1 , 1 , 2 〉 . Evaluate the following expressions. 42. d d t ( u ( sin t ) ) | t = 0
Derivative rules Suppose u and v are differentiable functions at t = 0 with u ( 0 ) = 〈 0 , 1 , 1 〉 , u ' ( 0 ) = 〈 0 , 7 , 1 〉 , v (0)= 〈 0 , 1 , 1 〉 , and v ' (0)= 〈 1 , 1 , 2 〉 . Evaluate the following expressions. 42. d d t ( u ( sin t ) ) | t = 0
Derivative rules Suppose u and v are differentiable functions at t = 0 with
u
(
0
)
=
〈
0
,
1
,
1
〉
,
u
'
(
0
)
=
〈
0
,
7
,
1
〉
,
v
(0)=
〈
0
,
1
,
1
〉
, and
v
'
(0)=
〈
1
,
1
,
2
〉
. Evaluate the following expressions.
Consider the function f(x) = x²-1.
(a) Find the instantaneous rate of change of f(x) at x=1 using the definition of the derivative.
Show all your steps clearly.
(b) Sketch the graph of f(x) around x = 1. Draw the secant line passing through the points on the
graph where x 1 and x->
1+h (for a small positive value of h, illustrate conceptually). Then,
draw the tangent line to the graph at x=1. Explain how the slope of the tangent line relates to the
value you found in part (a).
(c) In a few sentences, explain what the instantaneous rate of change of f(x) at x = 1 represents in
the context of the graph of f(x). How does the rate of change of this function vary at different
points?
1. The graph of ƒ is given. Use the graph to evaluate each of the following values. If a value does not exist,
state that fact.
и
(a) f'(-5)
(b) f'(-3)
(c) f'(0)
(d) f'(5)
2. Find an equation of the tangent line to the graph of y = g(x) at x = 5 if g(5) = −3 and g'(5)
=
4.
-
3. If an equation of the tangent line to the graph of y = f(x) at the point where x 2 is y = 4x — 5, find ƒ(2)
and f'(2).
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