Using a Sum or Difference Identity, Write the Following as an Expression

question 158

Multiple Choice

Using a sum or difference identity, write the following as an expression involving functions of x.
- $$1 - \cos ^ { 2 } \theta$$

• A) \(\sin \theta\)
• B) \(- \sin ^ { 2 } \theta\)
• C) \(\sin ^ { 2 } \theta\)
• D) \(\tan ^ { 2 } \theta\)

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Definitions:

Hertz

The unit of frequency in the International System of Units (SI), equivalent to one cycle per second, used to measure the frequency of alternating currents and sound waves.

Cycle

One complete AC waveform.

Effective

Producing a decided, decisive, or desired effect, particularly in the context of performance or efficiency.

Peak-to-peak

Refers to the difference in amplitude between the highest and the lowest points of a waveform, indicating the total voltage change.