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I'm having trouble with this problem: https://www.screencast.com/t/I5Ng2QaqX2Bv 

 

 

Any help is appreciated! :) <3 

 Jan 17, 2018
 #1
avatar+101898 
+2

If  f(x )  =  sec x  , tan (x)  = 1    and x  is in Quadrant I what is the value of  (f * f)(x)  ??

 

If  tan (x)  = 1,   then x  =  pi/4

 

And  

 

(f * f) (x)   =  f(x) * f(x)

 

So

 

(f * f) (pi/ 4)    =  f(pi/4) * f(pi/4)   =  sec(pi/4) * sec(pi/4)  =  √2 * √ 2   =   2

 

 

cool cool cool

 Jan 17, 2018

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