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Shaydenparis

  • 3 years ago

prove: sin y+tan y/ over /1+ sec y =sin y

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  1. geerky42
    • 3 years ago
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    Like this? \(\dfrac{\sin y + \tan y}{1 + \sec y} = \sin y\)

  2. Shaydenparis
    • 3 years ago
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    yes

  3. geerky42
    • 3 years ago
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    Start with this: \[ \dfrac{\sin y + \tan y}{1+\sec y} \cdot \dfrac{1-\sec y}{1-\sec y} \] Then multiply both fractions together then simplify.

  4. geerky42
    • 3 years ago
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    Get it?

  5. Shaydenparis
    • 3 years ago
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    yep

  6. geerky42
    • 3 years ago
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    Oh, and remember these trigonometry identify: 1−sec²x = −tan²x

  7. geerky42
    • 3 years ago
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    Please let me know when you are stuck, ok?

  8. Shaydenparis
    • 3 years ago
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    yea im bad at math so im stuck

  9. geerky42
    • 3 years ago
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    In what step are you stuck at?

  10. Shaydenparis
    • 3 years ago
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    just cant do it

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