what is sine?

Question

I'm working on a trigonometry question and I need to know what is sin and what is cosine? I am a complete newbie so how do you solve problems with them?

Answer 1

em thangs be trig funkshuns . . . That meen yu hav a rite triangel . . . sine av angel=(far side) / diagonal . . . kosine av angel=(neer side) / diagonal . . . diagonal=side kros from 90 deg

Answer 2

Sine is y/r. Cosine is x/r. use the formula (X^2)+(y^2)=(r^2) to find x(cosine), y(sine), or r

Answer 3

Sine is the trigonometric function that is equal to the ratio of the side opposite a given angle (in a right-angled triangle) to the hypotenuse.

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