Trig Ratios- Open Middle Problem

Directions: Using the following trig ratios, complete the following table:

cos 30º, sin 30º, cos 45º, sin 45º, tan 30º, cot 30º, sec 30º, csc 30º

 

 

trig-ratio.png

What trig ratios CANNOT go in the center square?

What is the smallest trig ratio that can be placed in the center square?

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