Because it is the 'Complimentary' Sine curve. , hence the name 'CoSine'.
No.-1
it would be secant, 1/cosine
[ cos(Θ) ]-1 = 1/cosine(Θ) = secant(Θ)
The cosine of anything is always a number between -1 and +1.3 - (-7) = 10
Sometimes. Not always.
the graph of cos(x)=1 when x=0the graph of sin(x)=0 when x=0.But that only tells part of the story. The two graphs are out of sync by pi/2 radians (or 90°; also referred to as 1/4 wavelength or 1/4 cycle). One cycle is 2*pi radians (the distance for the graph to get back where it started and repeat itself.The cosine graph is 'ahead' (leads) of the sine graph by 1/4 cycle. Or you can say that the sine graph lags the cosine graph by 1/4 cycle.
Oh, dude, it's like asking the difference between a hot dog and a hamburger. So, like, the main difference is just a phase shift of 90 degrees. Sine starts at zero, cos starts at one, but they're basically like two sides of the same math coin.
Well, the easiest way to go at it is simply to remember thatthe sine and cosine of any angle are always less than 1 .
Cosine of 1 degree is about 0.999848. Cosine of 1 radian is about 0.540302.
No.-1
The sine and the cosine are always less than one.
-1<cosine<1
Cosine (0) = 1 Sin(0) = 0 The sine and cosine curves are two intertwining curves, that complement each other, hence the words 'Sine (Curve) and Cosine ( COmplementary Curve).
The cosine function, like all of the trigonometric functions, is periodic about the rotation around a circle. Since the cosine is defined as the adjacent/hypotenuse of a right triangle, you can clearly see that its value can never be greater than one or less than -1 since the hypotenuse is always longer than the adjacent side. It turns out that, indeed, the cosine's range is from -1 to 1, written [-1,1].
it would be secant, 1/cosine
The cosine of 2pi is 1. In fact, for every integer N, the cosine of 2 N pi is 1.
Secant is 1 over cosine and cosine 0 equals 1.