Part 1: Using complete sentences, compare the key features and graphs of sine and cosine. What are their similarities and differences?
Part 2: Using these similarities and differences, how would you transform f(x) = 4 sin(2x - π) + 3 into a cosine function in the form f(x) = a cos(bx - c) + d?
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can you compare the sin(x) with the cos(x)?
thats what i need help with...
we are using radians to measure the angle.
if we draw a circle, and measure the angle from the x-axis
notice that x value will be the cos(x) and the y-value the sin(x)
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i need explaination @0_0youscareme
now as you turn counter-clockwise, the sin x gets bigger (until we reach pi/2 i.e. 90º i.e. pointing straight up)
and cos x gets smaller.
if we plot the numbers we get the graph I posted up above.
notice that when x reaches 2 pi we went around the circle, and everything repeats...
the *only* difference between sin x and cos x is that sin x is shifted by pi/2
as compared to cos x (or vice versa)