Question

Which value is equal to 1/2 select all that apply

Answer 1

To solve this, we use the unit circle, which I will attach an image to review:

Looking at the circle, we notice that the values of the answer options correspond to the following values:

$\begin{gathered} \sin (30)=\frac{1}{2} \\ \cos (45)=\frac{\sqrt[]{2}}{2} \\ \tan (30)=\frac{\sin (30)}{\cos (30)}=\frac{\frac{1}{2}}{\frac{\sqrt[]{3}}{2}}=\frac{\sqrt[]{3}}{3} \\ \sin (45)=\frac{\sqrt[]{3}}{2} \\ \cos (60)=\frac{1}{2} \\ \tan (45)=\frac{\sin(45)}{\cos(45)}=\frac{\frac{\sqrt[]{2}}{2}}{\frac{\sqrt[]{3}}{2}}=1 \end{gathered}$

In conclusion, the values that are equal to 1/2 are:

$\begin{gathered} \sin (30)=\frac{1}{2} \\ \cos (60)\frac{01}{2} \end{gathered}$