anonymous
  • anonymous
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?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
can you compare the sin(x) with the cos(x)?
anonymous
  • anonymous
thats what i need help with...
anonymous
  • anonymous
we are using radians to measure the angle. if we draw a circle, and measure the angle from the x-axis |dw:1436458116835:dw| notice that x value will be the cos(x) and the y-value the sin(x)

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anonymous
  • anonymous
i need explaination @0_0youscareme
anonymous
  • anonymous
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...
anonymous
  • anonymous
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)
anonymous
  • anonymous
That works too lol
0_0youscareme
  • 0_0youscareme
lol
anonymous
  • anonymous
If you need further help just message me :)

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