Unit 3 Test Review

Opposite

Adjacent

Hypotenuse

Opposite

Adjacent

Hypotenuse

Sine

Cosine

Tangent

opposite

adjacent

hypotenuse

opposite

adjacent

hypotenuse

Sine

Cosine

Tangent

opposite

adjacent

hypotenuse

opposite

adjacent

hypotenuse

Sine

Cosine

Tangent

$$\cos\left(27\degree\right)=\frac{8}{AC}$$  

$$\cos\left(27\degree\right)=\frac{AC}{8}$$  

$$\sin\left(27\degree\right)=\frac{8}{AC}$$

$$\sin\left(27\degree\right)=\frac{AC}{8}$$

3.6

9

17.6

7.1

0.6

$$\tan\left(43\degree\right)=\frac{12}{x}$$

$$\tan\left(43\degree\right)=\frac{x}{12}$$

$$\sin\left(43\degree\right)=\frac{12}{x}$$

$$\sin\left(43\degree\right)=\frac{x}{12}$$

11.2

12.9

0.28

0.9

Type in $$\sin^{-1}\left(\frac{12}{27}\right)$$ to DESMOS and you get  $$26\degree$$  

Type in $$\sin^{-1}\left(\frac{27}{12}\right)$$ to DESMOS and you get undefined.

Type in $$\cos^{-1}\left(\frac{12}{27}\right)$$ to DESMOS to get  $$64\degree$$  

Type in $$\cos^{-1}\left(\frac{27}{12}\right)$$ to DESMOS to get undefined.

Type in $$\sin^{-1}\left(\frac{16}{36}\right)$$ to DESMOS and you get  $$26\degree$$  

Type in $$\sin^{-1}\left(\frac{36}{16}\right)$$ to DESMOS and you get undefined.

Type in $$\cos^{-1}\left(\frac{16}{36}\right)$$ to DESMOS to get  $$64\degree$$  

Type in $$\tan^{-1}\left(\frac{16}{36}\right)$$ to DESMOS to get $$24\degree$$  .