Trigonometry Made Easy - How to Use Cosine and Sine to find Vector Components

This tutorial will make you proficient in finding components of vectors. Visualizing cosine (peels off the shadow cast by a vector on the adjacent side to a known angle) and sine (peels off the shadow cast by a vector on the opposite side) in a certain way can make you pretty fast with using cosine and sine. Using cosine is easy if you visualize it as a machine that finds the "shadow" of a hypotenuse on the side adjacent to a known angle. If you have a hypotenuse of length H tipped at an angle theta from the floor, then H cos theta is the length of its shadow on the floor if illuminated from above. Likewise H sin theta would be the shadow on the wall with side lighting. 1:50 Drills to work through as a class to get fast with using sine and cosine. Many students find this to be a faster and more vivid conceptual approach than SOHCAHTOA.

[ADITHYA-bz]

THATS HOW IT MUST BE DONE U NAILED IT KEEP WORKING FOR TRICKS DUDE..

[mxfpzms]

You did what all my schooling teachers couldn't do

[ameenhammur]

great video thanks you helped me a lot

[JStormy]

There are two kinds of smart people: those who take simple things and make them sound complicated, and those who take complicated things and make them sound simple. This is the second.