Use the Formula $a \cos B x + b \sin B x = A \cos ( B x - C )$

question 7

Multiple Choice

Use the formula $a \cos B x + b \sin B x = A \cos ( B x - C )$ $\text { where } A = \sqrt { a ^ { 2 } + b ^ { 2 } } \text { and } \tan C = \frac { b } { a } \text { with } - \frac { \pi } { 2 } < C < \frac { \pi } { 2 }$ to determine the period of f (x) . $f ( x ) = 7 \cos 12 x - 7 \sin 12 x$

• A) \(\frac { \pi } { 7 }\)
• B) \(\frac { \pi } { 6 }\)
• C) \(\frac { \pi } { 4 }\)
• D) \(6 \pi\)
• E) \(\frac { \pi } { 12 }\)

Explain the concept of carryover effects and how they can influence research outcomes.

Recognize the importance of controlling for variables that can affect the validity of experimental findings.

Understand the use and benefits of the Latin square technique in experimental design.

Explain the implications of practice, fatigue, and other performance-related effects in repeated measures.

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