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It would help if I knew a little more information about what you're looking for, in order to better answer your question, but here are the basics.
For a right triangle, given one of the angles that is not the 90° angle:
- sine is the ratio of the length of the side opposite the angle divided by the length of the hypotenuse.
- cosine is the ratio of the length of the side adjacent to the angle divided by the length of the hypotenuse.
One way to remember this is: Sine, Cosine, Tangent; then think of Old Harry Always Has Old Apples. Sine = O/H, Cosine = A/H, and Tangent = O/A,
where O is the Opposite side, A is the Adjacent side, and H = Hypotenuse.
Another one that somebody taught me is: Oh Heck Another Hour Of Algebra. Pick whatever helps you to remember.
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What is cosine squared theta equal to'?
Cosine squared theta = 1 + Sine squared theta
What is the derivative of negative cosine?
The derivative of negative cosine is positive sine.
What does sin mean in trig?
its short for sine. theres sine, cosine, and tangent. sine is opposite over adjacent for the sides of a triangle (or angles)
Is sine and cosine a periodic function?
Yes they are. Both have a a period of 2 pi
Why cos negative results positive?
It doesn't really. Depending on the exact value of the argument, the cosine function can give both positive and negative results, for a negative argument. As to "why" the sine, or cosine, functions have certain values, just look at the function definition. Take points on a unit circle. The sine represents the y-coordinate for any point on the circle, while the cosine represents the x-coordinate for such a point. (There are also other ways to define the sine and the cosine functions.)
If two integers have the same sign what is the sine of their sum?
Sine(A+ B) = Sine(A)*Cosine(B) + Cosine(A)*Sine(B).
How do you find the cosine and the sine?
Sine= Opposite/ Hypotenuse Cosine= Adjacent/ Hypotenuse
What are the Differentiate the sine wave and cosine wave?
The differential of the sine function is the cosine function while the differential of the cosine function is the negative of the sine function.
How does the tangent function relate to sine and cosine?
Tangent = sine/cosine provided that cosine is non-zero. When cosine is 0, then tangent is undefined.
Why are sine and cosine functions used to describe periodic?
because sine & cosine functions are periodic.
How do you find sine cosine and tangent of 210 degrees?
Sine = -0.5 Cosine = -0.866 Tangent = 0.577
Do the equations sine plus cosine and sine squared plus cosine squared both equal 1?
No, they do not.
How do you find the max and min of sine cosine functions?
The maximum of the sine and cosine functions is +1, and the minimum is -1.
How do you find the hypotenuse with a cosine and or sine?
For a right angle triangle:- hypotenuse = adjacent/cosine or hypotenuse = opposite/sine
What is the difference between negative sine and cosine graphs and positive sine and cosine graphs?
The negative sine graph and the positive sine graph have opposite signs: when one is negative, the other is positive - by exactly the same amount. The sine function is said to be an odd function. The two graphs for cosine are the same. The cosine function is said to be even.
What is cosine squared theta equal to'?
Cosine squared theta = 1 + Sine squared theta
What is the derivative of negative cosine?
The derivative of negative cosine is positive sine.
