Evaluating an Expression In Exercises 123-126, evaluate each expression without using a calculator. [Hint: Sketch a right triangle, as demonstrated in Example 7.] (a) sec [ arctan ( − 3 5 ) ] (b) tan [ arcsin ( − 5 6 ) ]
Evaluating an Expression In Exercises 123-126, evaluate each expression without using a calculator. [Hint: Sketch a right triangle, as demonstrated in Example 7.] (a) sec [ arctan ( − 3 5 ) ] (b) tan [ arcsin ( − 5 6 ) ]
Evaluating an Expression In Exercises 123-126, evaluate each expression without using a calculator. [Hint: Sketch a right triangle, as demonstrated in Example 7.]
1. For each of the following, find the critical numbers of f, the intervals on which f is increasing or decreasing, and the relative
maximum and minimum values of f.
(a) f(x) = x² - 2x²+3
(b) f(x) = (x+1)5-5x-2
(c) f(x) =
x2
x-9
2. For each of the following, find the intervals on which f is concave upward or downward and the inflection points of f.
(a) f(x) = x - 2x²+3
(b) g(x) = x³- x
(c) f(x)=x-6x3 + x-8
3. Find the relative maximum and minimum values of the following functions by using the Second Derivative Test.
(a) f(x)=1+3x² - 2x3
(b) g(x) = 2x3 + 3x² - 12x-4
Find the
Soultion to the following dy
differential equation using Fourier in
transforms:
=
, хуо, ухо
according to the terms:
lim u(x,y) = 0
x18
lim 4x (x,y) = 0
x14
2
u (x, 0) =
=\u(o,y) =
-y
لو
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