CPM Homework Help : A2C Problem 13-97

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Home > A2C > Chapter 13 > Lesson 13.2.1 > Problem 13-97

13-97.

Solve for $x$ in degrees.

$2\sin(x)=1$
Step (a):
Isolate $\sin\left(x\right)$ .
$\sin(x)=\frac{1}{2}$
Hint (a):
Use the unit circle to help you find the values that solve the equation.

$\cos^2\left(x\right)+4\cos\left(x\right)+4=0$
Hint (b):
Let $U=\cos\left(x\right)$ to begin.
Answer (b):
No solution.

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