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anonymous

  • one year ago

If sin(x) = 1/2, what is cos(x) and tan(x)? Explain your steps in complete sentences.

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  1. anonymous
    • one year ago
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    first of all you need to find angles such that sin(x)=1/2

  2. anonymous
    • one year ago
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    How do I do that exactly? Sorry I am just terrible at math :/

  3. anonymous
    • one year ago
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    there are two such angles: |dw:1444416994811:dw| the first one is well-known - x=30 degrees the another is easy to find - 180deg - 30deg = 150 deg

  4. anonymous
    • one year ago
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    in both cases cos(x) and tan(x) are different. when x=30: \[\cos(x)=\sqrt3/2\] \[\tan(x)=\sqrt3/3\]

  5. anonymous
    • one year ago
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    when x=150 deg \[\cos(x)=-\sqrt3/2\] \[\tan(x)=-\sqrt3/3\]

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