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# hw7 - Homework Assignment 7 8.3-8.5 1 sec 4 a b c d e 2 sec...

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Homework Assignment 7 – 8.3-8.5 1. 4 sec tan x xdx = a. 3 1 tan tan 3 x x C + b. 2 4 1 1 tan tan 2 4 x x C + c. 5 7 1 1 tan tan 5 7 x x C + d. tan x x C + e. None of these 2. 4 4 sec tan x xdx = 3. Which substitution should be used to compute 2 1 4 dx x - ? 4. Which substitution should be used to compute ( 29 2 3/2 2 2 x dx x + ?

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5. Set up the integral needed to find 2 4 x dx - using trigonometric substitution. a. 2 4cos u du b. 2cos u du c. 2 4sin u du d. 4sin cos u u du e. None of these 6. Suppose you use the trigonometric substitution 2tan x u = to compute an integral and you end up with 1 sec 2 u u C - + + . Finish the problem by rewriting the answer in terms of . x x x C + - + + x x C - - + + x x C - - + + x x C - - + +
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hw7 - Homework Assignment 7 8.3-8.5 1 sec 4 a b c d e 2 sec...

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