C3 find range of y=0.5arctanx Watch

Ian1234
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#1
Report Thread starter 11 years ago
#1
Hi
I've found a problem in a past C3 paper thats troubling me.
"y=f(x), where f(x)=0.5arctanx. Find the range of the function, giving your answer in terms of pi".
Don't get how to do it.
Any help would be great. Cheers
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Totally Tom
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#2
Report 11 years ago
#2
Whats the range of arctanx?

Now half it.
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Ian1234
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#3
Report Thread starter 11 years ago
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so range of arctanx is -pi/2 to pi/2
then half to get -pi/4 to pi/4
thanks
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dancindiva
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Report 11 years ago
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yeh but then it repeats doesn't it?
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