Arcsin not working

Hello,
I set my TI-82 calculator to degrees, and when I type 2nd sin 55, it gives me DOMAIN ERROR... help me, I have a test tomorrow.

1 answer

  1. Moderator
    Hello,
    Apparently, some parentheses are missing somewhere
    In "Degree" mode, if you want the sine of 55 degrees, you need to type Sin(55)
    However, if you want the inverse sine (arc sine), then you need to type 2nd Sin(55)
    Excerpt from the manual on page 59 The manual: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=2ahUKEwiSwbDjkJPfAhWBy4UKHU0yAMIQFjAAegQIBxAC&url=http%3A%2F%2Feducation.ti.com%2F%7E%2Fmedia%2F9A9D765D9E394B2897336CC1F712B5B9&usg=AOvVaw0Tp6SReqS1S0iqgQN93vMf
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