There are several ways to look at it....
The peak amplitude of the functions y = sin(x) and y = cos(x) is 1.
The peak-to-peak amplitude of the functions is 2.
The RMS (root mean square) amplitude of the functions is the reciprocal of the square root of two (2-½ ≈ 0.707).
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Period is how long it takes for the sine and cosine functions to restart repeating themselves. Both have a period of 2pi (360 degrees).
sine graph will be formed at origine of graph and cosine graph is find on y-axise
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.
The anti derivative of negative sine is cosine.
Generally, the derivative of sine is cosine.