Use the Formula $a \sin B \theta + b \cos B \theta = \sqrt { a ^ { 2 } + b ^ { 2 } } \cos ( B \theta - C )$

question 221

Multiple Choice

Use the formula $a \sin B \theta + b \cos B \theta = \sqrt { a ^ { 2 } + b ^ { 2 } } \cos ( B \theta - C )$ , where $C = \arctan ( a / b ) , a = 3 , b = 7 , B = 2$ to rewrite the trigonometric expression in the following form.
$y = \sqrt { a ^ { 2 } + b ^ { 2 } } \cos ( B \theta - C )$ $a \sin B \theta + b \cos B \theta$

---

Definitions:

Inflationary Pressure

The upward pressure on prices that may arise from factors such as increased demand or rising costs, leading to inflation.

Seasonal Unemployment

Unemployment resulting from seasonal variations in demand or supply of labor, often seen in industries like agriculture or tourism.

Potential Level

An economic term referring to the highest level of output an economy can sustain over a long period without increasing inflation.

Actual Output

The total value of goods and services produced by an economy at a given period, also known as real GDP.