How to Find Trigonometric Ratios Based on Reference Angle
Hi ! I hope you are watching continuously the videos series of trigonometry.
Now you are perfect in trigonometric fundamental concept please learn & remember those tricks & short sentences.
Now in this videos we are going to learn – how to find the trigonometric ratios based on the reference angle taken.
First think this concept is really simple and now watch this video taking you notebook and pen !
In this problem the main thing is how you observe the right angle triangle and determining the Perpendicular & Base Side. First see the
reference angle in the question which angle it is then use the as we already discussed trick-
1st – Luther Had Some Books Of Personality.
L – H – Largest/Longest side Hypotenuse
S-B – Seat of angle Base
O- P – Opposite of angle Perpendicular
And then see which trigonometric ratios you have to find out using 2nd trick – Some People Have Curly Black Hair They Perform Best.
|Some (Sine)||Curly (Cos)||They (Tan)|
|People (P)||Black (B)||Perform (P)|
|Have (H)||Hair (H)||Best (B)|
Here I am listing some problems please solve and if you feel any problem then please comment !
If you have finished doing these all then lets watch another video –
4. Trigonometry – Finding 5 other Ratios If Given One !