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britbrat4290

  • 2 years ago

Complete the identity..

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  1. britbrat4290
    • 2 years ago
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  2. Coolsector
    • 2 years ago
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    so sin(a+b) = sinacosb + cosbsina can you do it now ?

  3. britbrat4290
    • 2 years ago
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    what is the value of that b sign ?

  4. Coolsector
    • 2 years ago
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    a - alpha , b - beta

  5. britbrat4290
    • 2 years ago
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    its not on my calc .. confused by that one

  6. Coolsector
    • 2 years ago
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    \[\sin(\alpha\ + \beta\ )= \sin(\alpha\ )\cos(\beta\ ) + \sin(\beta\ )\cos(\alpha\ )\]

  7. Coolsector
    • 2 years ago
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    this is an identity.. can you solve your problem using this now ?

  8. britbrat4290
    • 2 years ago
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    tan α + tan β .... or do i have those reverse ?

  9. Coolsector
    • 2 years ago
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    correct

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