Difference between revisions of "1991 AHSME Problems/Problem 21"

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== Solution ==
 
== Solution ==
<math>\fbox{}</math>
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<math>\fbox{A}</math>
  
 
== See also ==
 
== See also ==

Revision as of 14:56, 28 September 2014

Problem

For all real numbers $x$ except $x=0$ and $x=1$ the function $f(x)$ is defined by $f(x/(1-x))=1/x$. Suppose $0\leq t\leq \pi/2$. What is the value of $f(\sec^2t)$?

Solution

$\fbox{A}$

See also

1991 AHSME (ProblemsAnswer KeyResources)
Preceded by
Problem 20
Followed by
Problem 22
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