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Test Section04FractionsTest

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Problem 1.

(1 point)
{{a+b\over a-b}\over a+b} =





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Problem 2.

(1 point)
{1\over x+1}-{1\over (x+1)^2} =





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Problem 3.

(1 point)
{\sqrt x (3x^2) - {1\over 2}x^{-1/2}(x^3+4)\over x} =





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Problem 4.

(1 point)
The expression R+1\over R can be written as 1 + {(\; )\over(\; )}. What is the (\; )\over(\; ) term?
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Problem 5.

(1 point)
u+a+{u\over u+a} =





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Problem 6.

(1 point)
{3\over x-4} - {2\over x+4} =





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Problem 7.

(1 point)
{1\over x^{-2}+y^{-2}} =





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Problem 8.

(1 point)
{x^2-a^2\over x^2+2xa+a^2} =





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Problem 9.

(1 point)
{t^{-1/2}+t^{1/2}\over{t^2}} =





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Problem 10.

(1 point)
{r+2\over r+1}+1 =





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