find sin2x, cos2x, and tan2x

  1. find all solutions in interval [0,2pi]tan²x = -3/2 secx This question may look tricky, but its actually quite simple. First:
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    2. ethan asked by ethan
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  2. tanx= -12/5 x in Q 2.find sin2x= cos2x= tan2x=
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    2. Sam asked by Sam
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  3. secx = 4 in Q2 find sin2x,cos2x,tan2x
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    2. j asked by j
    3. views icon 852 views
  4. Verify the trigonometric identity:[(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I can't figure this out.
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    2. Matt asked by Matt
    3. views icon 664 views
  5. Verify the trigonometric identity:[(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= -tan²x I still can't figure this out.
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    2. Matt asked by Matt
    3. views icon 1,316 views
  6. tanx= -12/5 x in quadrant 2find; sin2x= cos2x= tan2x=
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    2. Adam asked by Adam
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  7. sin2x − cos2x − tan2x = 2sin2x − 2sin4x − 1/1 − sin2x for x = 45
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    2. thomas asked by thomas
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  8. find sin2x, cos2x, and tan2x if sinx= -1/sqrt 5 and x terminates in quadrant II
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    2. moch asked by moch
    3. views icon 667 views
  9. find sin2x, cos2x, and tan2x if sinx= -2/sqrt 5 and x terminates in quadrant III
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    2. Elena asked by Elena
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  10. Find sin2x, cos2x, and tan2x if cosx=−2/sqrt 5 and x terminates in quadrant II.
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    2. Tristan asked by Tristan
    3. views icon 186 views