Math112W12Sec15.daneso.setIntroduction_to_WebWorK - Dane S...

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Dane S Olenslager Olenslager Math112W12Sec15 WeBWorK assignment number setIntroduction to WebWorK is due : 04/13/2012 at 08:00am MDT. The website for the course contains the syllabus, grading policy and other information. The primary purpose of WeBWorK is to let you know that you are getting the correct answer or to alert you if you are making some kind of mistake. Usually you can attempt a problem as many times as you want before the due date. However, if you are having trouble figuring out your error, you should consult the book, or ask a fellow student, one of the TA’s or your professor for help. Don’t spend a lot of time guessing – it’s not very efficient or effective. Give 4 or 5 significant digits for (floating point) numerical answers. For most problems when entering numerical answers, you can if you wish enter elementary expressions such as 2 3 instead of 8, sin ( 3 * pi / 2 ) instead of -1, e ( ln ( 2 )) instead of 2, ( 2 + tan ( 3 )) * ( 4 - sin ( 5 )) 6 - 7 / 8 instead of 27620.3413, etc. Here’s the list of the functions which WeBWorK understands. You can use the Feedback button on each problem page to send e-mail to the professors. 1. (1 pt) This problem demonstrates how you enter numerical answers into WeBWorK. Evaluate the expression 3 ( - 4 )( 11 - 11 - 2 ( 9 )) : In the case above you need to enter a number, since we’re testing whether you can multiply out these numbers. (You can use a calculator if you want.) For most problems, you will be able to get WeBWorK to do some of the work for you. For example Calculate (-4) * (11): The asterisk is what most computers use to denote multipli- cation and you can use this with WeBWorK. But WeBWorK will also allow you to use a space to denote multiplication. You can either - 4 * 11 or -44 or even - 4 11. All will work. Try them. Now try calculating the sine of 45 degrees ( that’s sine of pi over 4 in radians and numerically sin(pi/4) equals 0.707106781186547 or, more precisely, 1 / 2 ). You can enter this as sin(pi/4) , as sin(3.1415926/4), as 1/sqrt(2), as 2**(-.5), etc. This is because WeBWorK knows about functions like sin and sqrt (square root). (Note: exponents can be indicated by ei- ther a ”caret” or **). Try it. sin ( π / 4 ) = Here’s the list of the functions which WeBWorK under- stands. WeBWorK ALWAYS uses radian mode for trig func- tions. You can also use juxtaposition to denote multiplication. E.g. enter 2sin
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Math112W12Sec15.daneso.setIntroduction_to_WebWorK - Dane S...

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