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anonymous

  • 5 years ago

i need help with this inverse. sin-1 (1/2)

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  1. anonymous
    • 5 years ago
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    It's equal to 30 degrees, because if you look at the unit circle, sin 30 will equal 1/2.

  2. anonymous
    • 5 years ago
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    If you can understand normal trig functions (eg. sin, tan, cos), then inverse will be just as easy.

  3. amistre64
    • 5 years ago
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    sin_1(x) = y means: x = sin(y) what angle gives you a sin of 1/2?

  4. anonymous
    • 5 years ago
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    ohhhh where sin = y, y = +1/2 @ 30 degrees

  5. anonymous
    • 5 years ago
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    will there be a problem where it isn't a nice value from the unit circle?

  6. anonymous
    • 5 years ago
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    I mean, if it pertains to your math class probably not (if calculators are not allowed). But if they do ask you to, then you will probably have access to a calculator. Otherwise it would take a lot of effort to try to find the value if it isn't off the unit circle.

  7. amistre64
    • 5 years ago
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    the sin^-1(1/2) does equal 30 degrees (pi/6 radians)

  8. anonymous
    • 5 years ago
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    ahhh there is a calculator section. in that case i assume i just type in 2nd the (for example) sin-1 then the number

  9. anonymous
    • 5 years ago
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    Yes.

  10. amistre64
    • 5 years ago
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    on your computer, there shuold be a calculator program

  11. amistre64
    • 5 years ago
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    inv, sin usually gets you the sin inverse

  12. amistre64
    • 5 years ago
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    1/2..inv....sin

  13. anonymous
    • 5 years ago
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    A ti-83 can easily be able to do this: 2nd => sin => type in number = Answer

  14. amistre64
    • 5 years ago
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    my calculator for school I gotta get: 2nd...trig....over to sin-1....input value....close paranthesis...enter

  15. anonymous
    • 5 years ago
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    mine is a ti-83 the 2nd then sin button

  16. anonymous
    • 5 years ago
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    gets me the answer

  17. anonymous
    • 5 years ago
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    thanks!

  18. anonymous
    • 5 years ago
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    No problem!

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spraguer (Moderator)
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