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virtus

  • 2 years ago

prove that (sin 2theta +1)/cos2theta =(cos theta +sin theta)/(cos theta -sin theta)

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  1. TuringTest
    • 2 years ago
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    is that \[\sin(2\theta)\]or\[\sin^2\theta\]?

  2. virtus
    • 2 years ago
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    sin(2θ)

  3. FoolForMath
    • 2 years ago
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    Multiply the numerator and denominator of the right hand side by \( (\cos \theta + \sin \theta )\) and the result should follow instantly.

  4. virtus
    • 2 years ago
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    alright lemme try

  5. virtus
    • 2 years ago
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    \[[( \sin 2\theta +1)/ \cos2\theta ] \times(\cos \theta +\sin \theta)\]

  6. virtus
    • 2 years ago
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    is this what you asked me to do?

  7. TuringTest
    • 2 years ago
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    no that's the left-hand side do the other side instead

  8. virtus
    • 2 years ago
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    OHH I SEEE

  9. virtus
    • 2 years ago
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    i got the answer hurray!

  10. virtus
    • 2 years ago
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    i have another question i need help with

  11. virtus
    • 2 years ago
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    prove that \[\cos 4x =8\cos ^{4}x - 8\cos ^{2}x +1\]

  12. FoolForMath
    • 2 years ago
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    New thread please :)

  13. virtus
    • 2 years ago
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    ok

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