Expand Using Sum/Difference Formulas sin((6pi)/7)cos((29pi)/42)-cos((6pi)/7)sin((29pi)/42)

$\sin (\frac{6 π}{7}) \cos (\frac{29 π}{42}) - \cos (\frac{6 π}{7}) \sin (\frac{29 π}{42})$

Step 1

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$\sin (\frac{6 π}{7}) \cos (\frac{29 π}{42}) - \cos (\frac{6 π}{7}) \sin (\frac{29 π}{42})$