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koli123able Group Title

Solve the triangle ABC in which α=48°32' , a=38.87 cm & c=24.93 cm . . . ANSWER= b=50.59, β=102°45' , γ=28°43'

  • one year ago
  • one year ago

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  1. koli123able Group Title
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    ????

    • one year ago
  2. hartnn Group Title
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    sine rule will directly give you γ

    • one year ago
  3. koli123able Group Title
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    \[\frac{ a }{ \sin \alpha }=\frac{ c }{ \sin \gamma }\]

    • one year ago
  4. koli123able Group Title
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    what will be the formula of sin gamma

    • one year ago
  5. hartnn Group Title
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    then cos rule will give you b c^2 = a^2+b^2 -2ab cos γ then sine rule again will give you β. sin gamma is only unknown there.... you'll get sin gamma =.... gamma = sin^-1 (....)

    • one year ago
  6. koli123able Group Title
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    what will be the formula of sin gamma??

    • one year ago
  7. koli123able Group Title
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    sin gamma = sin alpha x c /a is this the formula???

    • one year ago
  8. hartnn Group Title
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    oh, that...yes (c/a) * sin aplha

    • one year ago
  9. koli123able Group Title
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    its coming wrong

    • one year ago
  10. koli123able Group Title
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    my calculator is giving a math error

    • one year ago
  11. hartnn Group Title
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    ....sin gamma is coming > 1 ??

    • one year ago
  12. hartnn Group Title
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    https://www.google.co.in/search?q=24.93+sin+(48.32+degrees)+%2F38.87&oq=24.93+sin+(48.32+degrees)+%2F38.87&aqs=chrome.0.57.11783&sourceid=chrome&ie=UTF-8 its not error for me

    • one year ago
  13. koli123able Group Title
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    it is coming < 1 0_0

    • one year ago
  14. hartnn Group Title
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    sin inverse of 0.479

    • one year ago
  15. hartnn Group Title
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    28.621 degrees

    • one year ago
  16. koli123able Group Title
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    I GOT IT I WAS TYPING WRONG

    • one year ago
  17. hartnn Group Title
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    okk..so got b and beta also ?

    • one year ago
  18. koli123able Group Title
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    we can also find beta by alpha + beta + gamma = 180 degrees beta = 180 - (alpha +gamma)

    • one year ago
  19. hartnn Group Title
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    good!

    • one year ago
  20. hartnn Group Title
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    i mean better :)

    • one year ago
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