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lilMissMindset Group Title

DIFFERENTIAL EQUATION: help please, anybody. (D^2 +4)y =4sin^2 (x)

  • 2 years ago
  • 2 years ago

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  1. hartnn Group Title
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    r^2 + 4 =0 r = \(\pm\)2i no repeated root...so form will be a sin x+ b cos x

    • 2 years ago
  2. hartnn Group Title
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    and not Acosx+Bsinx+Cxcosx+Dxsinx

    • 2 years ago
  3. lilMissMindset Group Title
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    yes, i got the answer now. :D yay!

    • 2 years ago
  4. hartnn Group Title
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    :D

    • 2 years ago
  5. hartnn Group Title
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    i still wonder , how u got x in the answer..

    • 2 years ago
  6. lilMissMindset Group Title
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    instead of using sin^2 x, i used 1/2 - 1/2*cos2x

    • 2 years ago
  7. hartnn Group Title
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    ok, so form will be asin x + bcos x +cx ?

    • 2 years ago
  8. lilMissMindset Group Title
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    yeps

    • 2 years ago
  9. hartnn Group Title
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    :)

    • 2 years ago
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