Let f x = 2 x − 8 . Use the partition of 2 , 7 in Quick Check Exercise 1 and the choices x 1 * = 2 , x 2 * = 4 , x 3 * = 5 , and x 4 * = 7 to evaluate the Riemann sum ∑ k = 1 4 f x k * Δ x k
Let f x = 2 x − 8 . Use the partition of 2 , 7 in Quick Check Exercise 1 and the choices x 1 * = 2 , x 2 * = 4 , x 3 * = 5 , and x 4 * = 7 to evaluate the Riemann sum ∑ k = 1 4 f x k * Δ x k
Let
f
x
=
2
x
−
8
. Use the partition of
2
,
7
in Quick Check Exercise
1
and the choices
x
1
*
=
2
,
x
2
*
=
4
,
x
3
*
=
5
,
and
x
4
*
=
7
to evaluate the Riemann sum
7. If a continuous function f of a single variable has exactly one critical number with a local maximum at
that critical point, then the value of f at that critical point is an absolute (global) maximum value.
However, the same is not always true for functions of two variables. Consider the function
f(x,y) = 3xe" --
(a) Show that f has exactly one critical point with a local maximum at that critical point.
(b) Use technology to draw the surface defined by f. Does f have an absolute (global) maximum value?
Please answer with complete solution
solve this quick. step by step.
Chapter 5 Solutions
Calculus Early Transcendentals, Binder Ready Version
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