Use a Graphing Utility to Solve the Equation on the Interval

question 295

Multiple Choice

Use a graphing utility to solve the equation on the interval 0 $0 ^ { \circ } \leq x < 360 ^ { \circ }$ . Express the solution(s) rounded to one decimal
place.
- $\sin ^ { 2 } x + 8 \sin x + 16 = 0$

• A) 208.2°, 331.8°
• B) 28.2°, 151.8°
• C) 28.2°, 151.8°, 208.2°, 331.8°
• D) No solution

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Definitions:

Simplify

The process of altering an expression or equation to make it easier to work with, often by combining like terms or applying mathematical operations.

Multiply

The mathematical operation of scaling one number by another, representing repeated addition.

Simplify

The process of making an algebraic expression or equation easier to understand by reducing it to its most basic form.

Divide

A mathematical operation where the total quantity is divided into equal parts, and the result shows how many of those parts make up the original amount.