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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. Psymon
    • 2 years ago
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    \[\cos(a-b) = \cos(a)\cos(b) + \sin(a)\sin(b)\] That's a start.

  3. britbrat4290
    • 2 years ago
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    ty @Psymon

  4. britbrat4290
    • 2 years ago
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    @Coolsector can u confirm im right? 1 + tan α tan β

  5. britbrat4290
    • 2 years ago
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    or @Psymon

  6. Psymon
    • 2 years ago
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    That's what it looks like to me.

  7. Coolsector
    • 2 years ago
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    yes

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