﻿ graph 2 cos(1/2x)

# graph 2 cos(1/2x)

Graph of f(x)sin2x. May 16, 2009 1. cash.money. Im trying to get the correct graph for this function off the computer. Can you please guide me to where I could get it and print it??May 16, 2009 2. mathman. Science Advisor. sin2x(1-cos2x)/2. Graphing y -2 cos(2x) - Duration: 5:00. patrickJMT 162,577 views.Pre-Calculus - How to determine the period and amplitude of a trigonometric graph 2, y 2cos(3x) - Duration: 2:10. y sin x and y cos x look pretty similar in fact the main difference is that the sine graph starts at (0,0) and the cosine at (0,1).Thinking about the fact that sin x cos (90 - x) and cos x sin (90 - x), it makes pretty good sense that theyre 90 degrees out of phase. From the graph it is clear that the curve repeats itself every 360o (2prad). This fact is expressed by the statement that the function has a period of 360o ( 2p radians).

In symbols we write cos(x 360o.n) cos(x 2pn) cos x where n is a positive or negative integer. To square the cos and not the x is what your expression means. We do not square the x here. We need to square the cos. The graph of y cos x is the graph of y sin x shifted, or translated. Since there are m periods in 2, then one period. is 2 divided by m. Compare the graphs above. Problem 5. y sin 2x. a) What does the 2 indicate? (Extended answers). Example 2. Solve: cos x -1/2. Calculators give x 2 Pi/3. The trig circle gives another x -2Pi/3.