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Only two of the 5 numbers below are not equal in value. Which ones?  (All functions are in degrees.)

 

tan 3, tan 30, tan 300, tan 3000, tan 30000

 May 23, 2020
 #1
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+1

 

According to my calculator

 

tan 3            =     0.0524 

tan 30          =     0.5774 

tan 300        =   –1.7321

tan 3000      =   –1.7321 

tan 30000    =   –1.7321 

   .

 May 23, 2020
edited by Guest  May 23, 2020
 #2
avatar+28025 
+1

Tan repeats itself every 180 degrees

 

(3000 - 300 )/180 = 15      so these two are equal

(30000-300)/180 = 165        equal 

 

 

so   300 3000 30000   tan's are equal      (as guest found)

 May 23, 2020

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