Sum and Difference Identities For Sine

Practice Questions

Pre-Calculus › Sum and Difference Identities For Sine

Questions

3

1

Is the following equation an identity? $sin(x-\pi)=sin(x)$

2

Use the sum or difference identity to find the exact value: $sin165^\circ$

3

Is the following equation an identity? $\sin \left ( x-\pi \right )=\sin \left ( x \right )$ ?

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