Drew C
ICM-5th
4/5/2003
6.4: Inverse Trigonometric Functions
I was chillin at the neighborhood park when these two crazy old pigs come up and try to hastle me. I was perplexed as to the reason why these guys were both trying to arrest me. They read me my rights and took me downtown to be booked. When they were fingerprinting me I asked the attending pig, Bacon, what I was being booked for. He said it was for murder. "What!" I screamed who did I murder. He then told me that in math class that day I had murdered a problem. He said that at my trial the only thing that I could use for my defense was to answer a problem of Inverse Trigonometric Functions wrong and explain why I missed it. Not knowing how to answer any problem incorrectly, I asked Jessica P. to show me how she constantly comes up with incorrect answers. So at nights while sitting in my lonely jail cell Jessica would tutor me.
| Trigonometric Functions | Inverse Trigonometric Functions |
| y= sinx | x=sin-1y or x=arcsin y |
| y= cosx | x= cos-1 y or x= arccos y |
| y= tanx | x= tan-1 y or x= arctan y |
For more help go to http://www.math.com/tables/algebra/functions/trig/functions.htm
Jessica told me that she was very good at missing the problem of, sec(sin-1 3/7), so she showed me how to miss it and I went through at the same time and showed her how to do it. Jessica is convinced that the answer is infinity but I told her it was not and this is how to do it.
First change the equation so it is a trigonometric function.
sintheta=3/7
Second change the equation so you can fit it into a triangle.
(7*7) = (3*3) + (x*x)
Next solve for the x
40 = x*x
sqrt 40 = x
Next solve for sectheta.
sectheta = 7/ (2sqrt20) = (7sqrt10)/20
The answer is
(7sqrt10)/20
When the judge saw that I would not give up my dignity by purposely missing a problem to get off he told the police to let me walk.
In conclusion I leave you with this: " Reading is to the mind what exercise is the body." -Sir Richard Steele
This means that reading is nourishment to your mind and intellect just as exercise is good for the body.