Use a Sum or Difference Identity to Find the Exact $\sin 255 ^ { \circ } \cos 15 ^ { \circ } - \cos 255 ^ { \circ } \sin 15 ^ { \circ }$

question 87

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\sin 255 ^ { \circ } \cos 15 ^ { \circ } - \cos 255 ^ { \circ } \sin 15 ^ { \circ }$

• A) \(\frac { \sqrt { 3 } } { 2 }\)
• B) \(- \frac { 1 } { 2 }\)
• C) \(- \frac { 17 } { 4 }\)
• D) \(- \frac { \sqrt { 3 } } { 2 }\)

Familiarize with the methods of electricity generation and basic laws of physics regarding electricity.

Understand the basic principles and components of capacitors.

Identify and describe the physical and operational characteristics of capacitors.

Calculate the total capacitance in series and parallel capacitor circuits.

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