Symbolic Questions (Part 2)

Symbolic Questions (Part 2) - Symbolic Questions (Part 2)...

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Unformatted text preview: Symbolic Questions (Part 2) 12/9/08 7:39 PM WebAssign Symbolic Questions (Part 2) (Homework) Current Score: 6 out of 6 Due: Friday, August 29, 2008 10:02 PM EDT Description This assignment will introduce you how to enter basic, advanced, and inverse trig functions as well as e, absolute values, and unusual variables. MICKLES BRANDON L MA 242, section 008, Fall 2008 Instructor: April Alston The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. 1/1 points Trigonometric functions are easy to enter in symbolic format. If you need to type something like sin(x) you would just type sin(x) . It is very simple! Note: remember that you must use parentheses. You can also enter things like cos(x), tan(2x), etc. Enter the following expression using the proper notation. sin(x) + cos(2 x) sin(x)+cos(2x) sin(x) + cos(2x) 2. 1/1 points To enter something like sin 2 (x) you need to type: sin(x)^2 or (sin(x))^2. Other examples are: cos(2x)^2, tan(4x+2)^2, and cot(6x)^2. Note: if you try to type the ^2 in the middle (for example, sin^2(x)) WebAssign will not understand your response. Enter the following expression using the proper notation. cos2 (9x+6) + sin 2 (10x) cos(9x+6)^2+sin(10x)^2 cos(9x+6)^2 + sin(10x)^2 http://www.webassign.net/v4cgiblmickle@ncsu/student.pl?f=20081210003936blmickle@ncsu15278239 Page 1 of 3 Symbolic Questions (Part 2) 12/9/08 7:39 PM 3. 1/1 points Inverse trig functions require you to use the notation below: sin -1 (x) = asin(x) cos-1 (x) = acos(x) tan -1 (x) = atan(x) sec-1 (x) = asec(x) csc-1 (x) = acsc(x) cot -1 (x) = acot(x) Note that asin(x) and sin(x)^(-1) are NOT the same thing. sin(x)^(-1) is equivalent to 1/sin(x). Enter the following expression using the proper notation. sin -1 (4x) + cos-1 (6x) asin(4x)+acos(6x) asin(4x) + acos(6x) 4. 1/1 points You will see the exponential function ( e) quite often. The notation for entering e using symbolic format is, admittedly, a bit strange. If your answer is e2 you can't just type e^2 as you might expect. Instead, you must type exp(2). Other examples are: exp(2x), exp(1), exp(4x + 6), etc. Always remember to use parentheses! Enter the following expression using the proper notation. e2 + e3 x + 2 exp(2)+exp(3x+2) exp(2) + exp(3x+2) 5. 1/1 points To enter the absolute value of something you will need to use the following notation: abs(2x). Other examples are: ln(abs(x)), abs(2x+4), and abs(sqrt(x)). Enter the following expression using the proper notation. http://www.webassign.net/v4cgiblmickle@ncsu/student.pl?f=20081210003936blmickle@ncsu15278239 Page 2 of 3 Symbolic Questions (Part 2) 12/9/08 7:39 PM ln(abs(4x+6))+abs(x) ln(abs(4x+6)) + abs(x) 6. 1/1 points Sometimes you will be asked to use special variables such as . These types of questions always have a note indicating how to enter the variables involved. It would be worded like this: (To enter , type theta.). Note that these variables are case sensitive so you must enter it exactly as the question states it or it will be counted as incorrect (unlike INFINITY or NONE). Enter the following expression using the proper notation. (To enter , type theta.) sin(theta)+cos(theta) sin(theta) + cos(theta) http://www.webassign.net/v4cgiblmickle@ncsu/student.pl?f=20081210003936blmickle@ncsu15278239 Page 3 of 3 ...
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This note was uploaded on 11/15/2010 for the course MA 242 taught by Professor Bliss during the Spring '08 term at N.C. State.

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