Trick for doing trigonometry mentally!
5:02
YouTubetecmath
Trick for doing trigonometry mentally!
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! To donate to the tecmath channel:https://paypal.me/tecmath To support tecmath ...
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