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pottersheep

  • 3 years ago

I need help please for this Trig equation!

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  1. pottersheep
    • 3 years ago
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    How do I do tan2x = -1 between -2pi<=x<=2pi ??

  2. cwrw238
    • 3 years ago
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    first find all values of 2x whose tan = -1 in the range -4pi to 4pi then divide by 2

  3. cwrw238
    • 3 years ago
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    first find all values of 2x whose tan = -1 in the range -4pi to 4pi then divide by 2

  4. pottersheep
    • 3 years ago
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    My values dont match the teachers, well my negative values dont

  5. cwrw238
    • 3 years ago
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    |dw:1353876122189:dw|

  6. cwrw238
    • 3 years ago
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    |dw:1353876122189:dw|

  7. pottersheep
    • 3 years ago
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    Yup okay so 3pi/4 and 7pi/4

  8. cwrw238
    • 3 years ago
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    the 2 values of x between 0 and 2pi are 4p-/4 and 7pi/4 - yes

  9. cwrw238
    • 3 years ago
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    * 3pi/4

  10. pottersheep
    • 3 years ago
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    can you help me find al the values though please

  11. cwrw238
    • 3 years ago
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    values of 2x are 3pi/4,7pi/4, 3pi/4 + 2pi, 7pi/4 + 2pi, -pi/4, -5pi/4, -pi/4 - 2pi, -5p i/4- 2pi ill let you simplify some of those values of x are half of these

  12. cwrw238
    • 3 years ago
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    values of 2x are 3pi/4,7pi/4, 3pi/4 + 2pi, 7pi/4 + 2pi, -pi/4, -5pi/4, -pi/4 - 2pi, -5p i/4- 2pi ill let you simplify some of those values of x are half of these

  13. pottersheep
    • 3 years ago
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    Thank you!! That's what I got too but thats not what my teacher did so I got confused!

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