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anonymous

  • 5 years ago

Why does this make no sense to me at all If you have Sqrt of 1-(.50)^2 the calcultor says its .87 How is that possible The sqrt of 1 is 1 1-.5 is .5 Can someone explain this

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  1. anonymous
    • 5 years ago
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    \[\sqrt{1-(.50)^2}\]

  2. anonymous
    • 5 years ago
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    be careful when entering it

  3. lalaly
    • 5 years ago
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    use brackets

  4. anonymous
    • 5 years ago
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    i did and the answer in my math book is .87

  5. anonymous
    • 5 years ago
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    if type in sqrt (1-(.50)^2) just liek that it says .87 how does that make sense at all The sqrt of 1 is 1 and 1 -,5 is not .87

  6. lalaly
    • 5 years ago
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    first do 1-.5^2 then take the sqrt of the answer i tried it

  7. anonymous
    • 5 years ago
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    like lalaly said, you have to do the stuff under the sqrt first...

  8. lalaly
    • 5 years ago
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    In addition and subtraction \[\sqrt{1-0.5^2} \cancel{=} \sqrt{1}-\sqrt{0.5^2}\]

  9. anonymous
    • 5 years ago
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    the sqrt of .5 is not .87 its .7 so what is going on

  10. lalaly
    • 5 years ago
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    as i said u have to find whats under the root then find the square root, u cant take the sqrt of each number individually

  11. anonymous
    • 5 years ago
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    nevermind im a moron ugh i hate having breaks at school i come back from break and forget everything i KNOW how to do sorry thanks

  12. lalaly
    • 5 years ago
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    its ok... goodluck

  13. anonymous
    • 5 years ago
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    You're not a moron. Everyone forgets stuff. That's why we're here to help. :)

  14. anonymous
    • 5 years ago
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    thanks guys p.s i hate trig lol

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