Review pk. 11-15
Does anyone have review problems 11-15? Apparently they are not on Mr. Karafiol's website. If anyone has the assignments, send to silliewillyzg@yahoo.com
posted by Will Z at 9:03 PM
Blog for students in Mr. Karafiol's Period 4 Precalculus BC class to talk about math, learning math, etc.
posted by Will Z at 9:03 PM
2 Comments:
I don't think we got them. Can I get an invite to the group. I think all I can do is make comments.
While I'm at it, I'm just going to post an explanation for number 19 in 8.5. It asks what sin(^(-1))(sin(7)) is. The answer is not 7 radians, though 7 radians is sort of correct. It would be if sin^(-1)(x) was a "perfect inverse" of sin(x) in the sense that its range was the same as sin(x)'s domain. But the range of sin^(-1)(x) is only between -pi and pi, if you remember from class. So the answer is 7-2(pi), which fits into the range of sin(-1)(x)
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