can you explain sine cosine and tangent?

Answer 1

try this site it explains well. http://www.lerc.nasa.gov/WWW/K-12/airplane/sincos.html

Answer 2

Your dividing the x-axis, y-axis, or hypotenuse of a triangle, made from on a grid, with each other to come up with all the numbers needed that will solve angular problems in Trigonometry. You may have noticed that in Trig. books there are tables showing all the numbers of Cosine, Sine, and Tangents for different degrees of a circle. When doing the Trig problems, these tables come in handy to speed up the solution to a variety of Trig formulas you will encounter.
In a right triangle, you will divide different sides with each other depending on what your looking for.

For Cosine, you divide x-axis over r (hypotenuse)

For Sine, you divide y-axis over r

For Tangent, you divide y-axis over x-axis.

Each angle will have a new set of numbers, hence the table. Of course a calculator eliminates the need for a table.

There are also inverted Sines, Cosines, and Tangents that are used in Trig problems. They are basically doing the above in reverse, or doing the same as above and dividing "into" 1.

1/cos 1/sin 1/tan

Hope this helps clear things up.

Answer 3

It might help to know that "sine" originally was the name of the short line perpendicular to a diameter of a circle to another diameter of the circle (related by an arc of the circle). Now it means the ratio of the short line to the diameter (or hypotenuse of a right angle within the circle). Co-sine means complement of the sine. Tangent involves the ratio of a line that is tangent to the circle. Hypotenuse means hypo "under" and teinein "stretched" or the line stretched under a right angle (like the floor of a tent?). Knowing the names of the lines helps remember the trig functions they are related to. Good luck.

Answer 4

Your dividing the x-axis, y-axis, or hypotenuse of a triangle, made out of on a grid, with one yet another to come back up with each and every of the numbers needed which will sparkling up angular complications in Trigonometry. you've said that in Trig. books there are tables exhibiting each and every of the numbers of Cosine, Sine, and Tangents for diverse tiers of a circle. even as doing the Trig complications, those tables are available accessible to p.c. up the answer to a kind of Trig formula you'll come across. In a suitable triangle, you'll divide diverse sides with one yet another searching on what your searching for. For Cosine, you divide x-axis over r (hypotenuse) For Sine, you divide y-axis over r For Tangent, you divide y-axis over x-axis. each and every attitude may have a sparkling set of numbers, therefore the table. for sure a calculator receives rid of the favor for a table. There are also inverted Sines, Cosines, and Tangents that are used in Trig complications. they're in reality doing the above in opposite, or doing a similar as above and dividing "into" a million. a million/cos a million/sin a million/tan wish this helps sparkling issues up.

Answer 5

That was a good website. I can't add anything to it, except to explain that trigonometry is used to obtain values along a specific axis - most often the X or Y axis. This is important in structural and mechanical engineering, for example.

Answer 6

sine- stands for secant-
in a right triangle(with one 90 deg angle) it is the ratio of perpendicular to hypotenuse.

cosine- cosecant- its the ratio of base to the hypotenuse.
tan- tangent- its the ratio of perpendicular to hypotenuse.

If u r still not clear ask me on my ID, also let know ur class standard.

Answer 7

This site helped me understand it better

http://www.ehow.com/how_2961_compute-sine-cosine.html