In Exercises 1-10, calculate the left Riemann sum for the given function over the given interval, using the given value of n. (When rounding, round answers to four decimal places. If using the tabular method, values of the function in the table should be accurate to at least five decimal places.) [ HINT: See Example 2.] f ( x ) = 1 − 3 x over [ − 1 , 1 ] , n = 4
In Exercises 1-10, calculate the left Riemann sum for the given function over the given interval, using the given value of n. (When rounding, round answers to four decimal places. If using the tabular method, values of the function in the table should be accurate to at least five decimal places.) [ HINT: See Example 2.] f ( x ) = 1 − 3 x over [ − 1 , 1 ] , n = 4
In Exercises 1-10, calculate the left Riemann sum for the given function over the given interval, using the given value of n. (When rounding, round answers to four decimal places. If using the tabular method, values of the function in the table should be accurate to at least five decimal places.) [HINT: See Example 2.]
4. Use method of separation of variable to solve the following wave equation
მłu
J²u
subject to
u(0,t) =0, for t> 0,
u(л,t) = 0, for t> 0,
=
t> 0,
at²
ax²'
u(x, 0) = 0,
0.01 x,
ut(x, 0) =
Π
0.01 (π-x),
0
Solve the following heat equation by method of separation variables:
ди
=
at
subject to
u(0,t) =0, for
-16024
ძx2 •
t>0, 0 0,
ux (4,t) = 0, for
t> 0,
u(x, 0) =
(x-3,
\-1,
0 < x ≤2
2≤ x ≤ 4.
ex
5.
important aspects.
Graph f(x)=lnx. Be sure to make your graph big enough to easily read (use the space given.) Label all
6
33
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