We need to determine if the graph is symmetric about the x−axis, the y−axis, or the origin.r=2cos5theta?

Reece Black

Reece Black

Answered question

2022-11-25

We need to determine if the graph is symmetric about the x -axis, the y -axis, or the origin. r = 2 cos 5 θ?

Answer & Explanation

Dalia Cordova

Dalia Cordova

Beginner2022-11-26Added 8 answers

Hint: r = 2 cos 5 θ
A graph is symmetric about x - if r ( θ ) = r ( - θ )
r - θ = 2 cos 5 - θ = 2 cos 5 θ cos - θ = cos θ = r θ
r ( θ ) = r ( - θ ) So, the graph is symmetric about x -axis.

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