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Algebra
Question

\(11 \) Diagram \( 8 \) shows a graph of trigonome...

\(11 \) Diagram \( 8 \) shows a graph of trigonometric function for \( 0 ^ { \circ } \leq x \leq 360 ^ { \circ } \) . State the trigonometric function of the graph. 

\( y = 3 \cos x \) 

\( y = \cos 2 x + 3 \)

\( y = 3 \cos 2 x \) 

\( y = \cos x + z \) 

 

Answer

c

Solution
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