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mari69755 Group Title

verify equation identity (1-cot^2)/(1+cot^2)+1=2 sin^2

  • 6 months ago
  • 6 months ago

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  1. mari69755 Group Title
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    I try solving it and it was not an identity but I am not sure I am right.

    • 6 months ago
  2. tgawade Group Title
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    |dw:1398203236677:dw|

    • 6 months ago
  3. mari69755 Group Title
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    yeah i I did that but at the end of it I did not get the 2sin^2

    • 6 months ago
  4. tgawade Group Title
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    |dw:1398203617892:dw|

    • 6 months ago
  5. mari69755 Group Title
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    yes

    • 6 months ago
  6. tgawade Group Title
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    At the end use property sin^2 + cos^2 = 1

    • 6 months ago
  7. tgawade Group Title
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    at denominator

    • 6 months ago
  8. mari69755 Group Title
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    yeah that would give me 1/sin^2

    • 6 months ago
  9. tgawade Group Title
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    Please check it

    • 6 months ago
  10. mari69755 Group Title
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    wait would my denominator be (sin^2+cos^2)/ sin^2?

    • 6 months ago
  11. tgawade Group Title
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    |dw:1398204432505:dw|

    • 6 months ago
  12. mari69755 Group Title
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    |dw:1398204540377:dw|

    • 6 months ago
  13. tgawade Group Title
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    similarly at denominatior , so sin^2 get cancel from both numerator & denominator ..

    • 6 months ago
  14. mari69755 Group Title
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    oh wow. so there would only be left -cos^2 right

    • 6 months ago
  15. tgawade Group Title
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    |dw:1398204881696:dw|

    • 6 months ago
  16. tgawade Group Title
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    Okay ?

    • 6 months ago
  17. mari69755 Group Title
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    yeah i understand that

    • 6 months ago
  18. tgawade Group Title
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    what would be the next step ?

    • 6 months ago
  19. tgawade Group Title
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    lcd

    • 6 months ago
  20. tgawade Group Title
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    Are you there ?

    • 6 months ago
  21. mari69755 Group Title
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    use the denominator equal one

    • 6 months ago
  22. tgawade Group Title
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    |dw:1398205488285:dw|

    • 6 months ago
  23. tgawade Group Title
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    So what do you get ?

    • 6 months ago
  24. mari69755 Group Title
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    at the top part do you multiply the a times y?

    • 6 months ago
  25. tgawade Group Title
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    in our step x = (sin^2 - cos^ ) & y = sin^2 + cos^2 & a = 1

    • 6 months ago
  26. mari69755 Group Title
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    yes so it would be sin^2-cos^2+(sin^2-cos^2) all divided by sin^2+cos^2?

    • 6 months ago
  27. mari69755 Group Title
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    okay I understood it never mine. Thank you so much for your help. I did get 2sin^2 at the end.

    • 6 months ago
  28. tgawade Group Title
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    You are welcome :)

    • 6 months ago
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