What does SIN mean in Mathematics? - XP Math - Forums

 XP Math - Forums What does SIN mean in Mathematics?

 07-26-2007 #1 Trevor Guest   Posts: n/a What does SIN mean in Mathematics? I really need to know, I probably sound ****** also, sorry for that. Can someone give me a full explanation of it? Again I need to know this for calculus and somehow I forgot since last year, thank you in advance. 10 points will be rewarded.
 07-26-2007 #2 PrincessIvory Guest   Posts: n/a d00d, i don't remember, but wiki will know!http://en.wikipedia.org/wiki/Trigonometric_functionit's sine, has to do with circles and pi.It's a function that will always tell you the circumference of a circle if you're given the radius or something like that.
 07-26-2007 #3 Carlos M Guest   Posts: n/a sin is trig function that tells you the y coordinate of the unit circle give an angle.Ex.Sin(0 ) = 0 sin(90) = 1 sin(180) = 0sin(270) = -1
 07-26-2007 #4 Lollipop Guest   Posts: n/a SIN - SineWhen you take the sin of an angle, it is opposite over hypotenuse. It has to be in a right triangle thoughII aI_______ bc = from the top of "a" to the right of "b"if you are tring to find the sin of angle b (which is opposite side b), you do opposite (a) over hypotenuse (c)
 07-26-2007 #5 birdwoman1 Guest   Posts: n/a In a right triangle, the sine of an angle (abbreviated SIN) represents a ratio between the lengths of the side opposite of the angle and the hypotenuse of triangle.Ex. In a standard 3, 4, 5 right triangle, the 2 legs are length 3 and 4, while the hypotenuse (always the longest side) is 5. So, the sine of one angle will be 3/5 and the sine of the other angle will be 4/5. The sine of the 90Â° right angle, since the opposite side and the hypotenuse are the same side, would be 5/5 = 1.And yes, you will use this in calculus! Good luck!

 Thread Tools Display Modes Linear Mode

 Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Welcome     XP Math News     Off-Topic Discussion Mathematics     XP Math Games Worksheets     Homework Help     Problems Library     Math Challenges

All times are GMT -4. The time now is 10:34 PM.

 Contact Us - XP Math - Forums - Archive - Privacy Statement - Top