Trick for doing trigonometry mentally! is interesting because math is easy and funny, make we laugh and clever in same time. In this chapter we will learn a little bit about Trick for doing trigonometry mentally!

## Description

This fast math trick can be used to mentally work out the main basic trigonometric ratios instantly! With this fast mental math technique you can work out the sin, the cos, and even the tan of the most common angles in no time at all! Become the trigonometry master!

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## Video Data

This video has been watched 38K views since Published on Mar 3, 2015 until 09-02-2018 04:52:53 and still continue. Duration 5:01 minutes.

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