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1) Make the appropriate substitutions in the following integrals without evaluating the integrals.
(a) ∫x3√(x2+2) dx
(b) ∫(x2/(√1-x2)) dx
(c) ∫(x2/x2+2x+2) dx
2) Consider ∫(x/√(x2-2)) dx
(a) Which is the most appropriate technique to evaluate this integral?
(b) Use the indicated technique to evaluate this integral.
(c) Evaluate this integral using a different technique.
3) Evaluate the following integrals using integration by parts.
(a) ∫exsinx dx
(b) 0∫πx2cos(2x) dx
(c) ∫x√(x+2) dx
4) Evaluate the following limits:
(a) limx→0 sinx/ex-1
(b) kimx→0+ sin(x2)/x2
5) Strontium -90 has a half-life of 28 days. Find a formula that gives the amount of strontium left after time t if you start one 200 grams. How long does it take for 80% of the Strontium to decay.
Use rules of differentiation.
Express the construction cost of the box as a function of the length of its base.
A force of 7 pounds is required to hold a spring stretched 0.3 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 0.9 feet beyond its natural length.
Suppose that η : R^n→ R^n is a Lipschitz function with Lipschitz constant αband 0≤α
3) a. Calculate the pressure that one feels in Pascals at sea level due to the atmosphere. Assume that the atmosphere is uniformly dense at 1.21 kg/m3, the height of the atmosphere is 10km, and g = 9.8 m/s2.
give an example of using the distributive property for a negative monomial times a trinomial with different signs on
ziam is considering an offer to perform his own songs on a cd to be titled waiting there. in the past he has written
Formulate and solve a linear programming model for this problem.
A tank of capacity 60KL is to be filled by a hose whose flow is 150 L/minute. If the tap is turned on at 8 am, show the tank will be full between 2.30 pm and 3 pm on the same day. (hint: 1KL = 1000L)
Why a taxpayer whose income tax rate is 27.8% would hope that the rate could be truncated to a whole number when calculating the amount of tax owed on the tax form.
Suppose you have 3 nickels, 2 dimes and 6 qtrs in your pocket. If you draw a coin ramdomly what is the probality that a. you will draw a dime ? b. you will draw a half dollar ? c. you will draw a qtr?
A rectangular poster has an area of 190 in. The height of the poster is 1 in less than twice its width. Find the dimensions of the poster.
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