syntax error on my calculator?!?

I try to find the inverse sine function on my calculator sin -1 (0.5) but it says Syntax Error.Why?I'm using Casio Scientific Calculator fx-570ms.Plz I really need help...

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  • 7 years ago
    Favourite answer

    If you literally typed in sin -1 (0.5) then, yes, it is a syntax error. You need to find the proper "inverse function" key

    Right above the sin key you should see the inverse sin function in yellow letters, indicating that you have to push the Shift key first. So your keystrokes should be either

    shift sin 0.5

    or else

    0.5 shift sin

    One of those two sequences should work for you

  • 7 years ago

    It needs to be sin^-1 , which is the inverse of sine.

    There should be an inverse key on the calculator, usually accessible by using the 2nd key, then pressing sin.

  • 7 years ago

    Above the sin key is the INVERSE SIN (ARCSIN OR SIN^-1) FUNCTION...you have to use the 'shift' key...

    what keystrokes are you using ?? what mode are you in (degrees ? radians ?)

    arcsin (0.5) = 30º or π/6 radians

  • 7 years ago

    Does NOBODY ever read the manual that comes with these things ?

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