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anonymous

  • one year ago

evaluate expression without using calculator

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  1. anonymous
    • one year ago
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    \[\sin \frac{ \pi }{ 6 } + \cos \frac{ \pi }{ 6}\]

  2. rishavraj
    • one year ago
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    \[\sin \frac{ \pi }{ 6 } = \frac{ 1 }{ 2 } ~~~~~~ \cos \frac{ \pi }{ 6 } = \frac{ \sqrt{3} }{ 2 }\]

  3. anonymous
    • one year ago
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    oh i think i got it one sec

  4. anonymous
    • one year ago
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    (1+sqrt3)/2

  5. UsukiDoll
    • one year ago
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    umm do you know the standard triangle for 30 degrees and 60 degrees? You may need to use that

  6. Astrophysics
    • one year ago
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    Haha I was just going to say, you could make the special triangles

  7. UsukiDoll
    • one year ago
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    yeah but someone recked it... by giving values for them -_-

  8. Astrophysics
    • one year ago
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    |dw:1436242856431:dw|

  9. Astrophysics
    • one year ago
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    Yeah, that's useless

  10. UsukiDoll
    • one year ago
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    giving direct answers is against code of conduct and that guy had to latex it -_-! I know this.. you need to memorize those triangles... it's useful for Calculus and in higher level math.

  11. Astrophysics
    • one year ago
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    |dw:1436242941509:dw|

  12. Astrophysics
    • one year ago
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    I love these triangles <3

  13. UsukiDoll
    • one year ago
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    but after finding those values, it's correct @Ssaharan

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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