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pottersheep

  • 2 years ago

How do I graph sinx + cosx? Missed the lesson in class...

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  1. pottersheep
    • 2 years ago
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    |dw:1347495306598:dw| That's cos and sin right? How do I add them together? Does the new graph line go higher than both of those? Or in between? Im confused :/ Thanks!

  2. lgbasallote
    • 2 years ago
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    unless you have an equal sign there....you can't graph it

  3. pottersheep
    • 2 years ago
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    Ok then y = sinx + cosx lol

  4. imron07
    • 2 years ago
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    since sin x+cos x=1/2 sin 2x then y=1/2 sin 2x. The graph is just the sin graph you made.

  5. pottersheep
    • 2 years ago
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    I made a sinx graph and a cosx graph, sorry I don't understand what you mean. Can someone please draw out for me what the new graph will look like in comparison to the sin and cos? Thannks

  6. theEric
    • 2 years ago
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    Here is an image of a graph from wolframalpha.com. Is sort of like a computational engine, I think... But it's very helpful. I typed, "sinx+cosx=y,sinx=y,cosx=y". When you graph them, you really can take the height of sin(x) and put the hieght of cos(x) on top of that!

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  7. pottersheep
    • 2 years ago
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    Thanks theEric!!

  8. theEric
    • 2 years ago
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    My pleasure! Thanks! You can also look at the unit circle to compare sin(x), cos(x), and sin(x)+cos(x).

  9. theEric
    • 2 years ago
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    |dw:1347503184086:dw|

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