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Answers posted by balaji.thirumalai

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Find the equation of the plane through the points (-—1,1,1) and (1,—-1,1) perpendicular to the plane x+2y+2z = 5
answered Feb 5, 2013
Toolbox - You need to learn  Step 1   Step 2  
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A doctor is to visit a patient. From the past experience, it is known that the probabilities that he will come by train, bus, scooter or by any other means of transport are respectively \(\frac{3}{10}, \frac{1}{5}, \frac{1}{10} \) and \( \frac{2}{5} \) . The probabilities that he will be late are \( \frac{1}{4}, \frac{1}{3} \) and \( \frac{1}{12} \) if he comes by train, bus and scooter respectively, but if he comes by other means of transport, then he will not be late. When he arrives, he is late. What is the probability that he comes by train.
answered Dec 21, 2012
  Solution:   $\Large\frac{1}{2} \Large $ ...
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Find the integral $\int(4\;e^{3x}+1)\;dx$
answered Dec 6, 2012
  Solution: $\frac{4}{3}e^{3x} + x + k$ Toolbox: $\int e^{n...
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Find the integral $\int x^2(1-\frac{1}{x^2})\;dx$
answered Dec 6, 2012
Solution: $\frac{1}{3}x^3-x+k$ Toolbox: $\int $$x^n$ $=$ $\frac{1}{...
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Find the integral $\int(2x^2+e^x)\;dx$
answered Dec 6, 2012
Solution: $\frac{2}{3}x^3 + e^x + k$ Toolbox: $\int e^{nx} = \frac...
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Find the integral $\int(ax^2+bx+c)\;dx$
answered Dec 6, 2012
Solution: $\frac{1}{3}a$$x^3$  + $\frac{1}{2}b$$x^2$ + $cx$ + $k$ ...
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Find the integrals of the functions\[\sin^2(2x+5)\]
answered Dec 6, 2012
Solution: $\frac{1}{2}x - \frac{1}{8}sin(4x+10)+k$ ...
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Find the integral of the function: $\int sin(3x). cos(4x) dx$
answered Dec 6, 2012
Solution: $\frac{1}{2}. cosx - \frac{1}{14}. cos\;7x + k$ Tool...
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Show me how to enter an answer in the advanced view?
answered Dec 5, 2012
See video here: https://www.dropbox.com/s/lpwtgg2o37drfum/ans.avi
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how do i enter the phi symbol?
answered Nov 25, 2012
http://geazy.com/q2a/index.php?qa=447&qa_1=how-do-i-enter-the-phi-symbol $$\phi $$
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