Use the figure to find the exact value of the trigonometric function. $$\begin{array} { l }
a = 12 , b = 3 \
c = 5 , d = 4
\end{array}$$
Cos 2$\beta$

A) $\frac { 41 } { 5 }$
B) $\frac { 3 } { 10 }$
C) $\frac { 9 } { 41 }$
D) $\frac { 12 } { 13 }$
E) $\frac { 41 } { 9 }$

Question

Use the figure to find the exact value of the trigonometric function.    $$\begin{array} { l } 
a = 12 , b = 3 \
c = 5 , d = 4
\end{array}$$  
Cos 2$\beta$ 
 
A) $\frac { 41 } { 5 }$ 
B) $\frac { 3 } { 10 }$ 
C) $\frac { 9 } { 41 }$ 
D) $\frac { 12 } { 13 }$ 
E) $\frac { 41 } { 9 }$

Quizplus · Accepted Answer

The Answer of Use the figure to find the exact value of the trigonometric function.    $$\begin{array} { l } 
a = 12 , b = 3 \
c = 5 , d = 4
\end{array}$$  
Cos 2$\beta$ 
 
A) $\frac { 41 } { 5 }$ 
B) $\frac { 3 } { 10 }$ 
C) $\frac { 9 } { 41 }$ 
D) $\frac { 12 } { 13 }$ 
E) $\frac { 41 } { 9 }$

Use the Figure to Find the Exact Value of the Trigonometric