Write the Given Expression as the Cosine of an Angle

question 23

Multiple Choice

Write the given expression as the cosine of an angle.

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Definitions:

Serratus Anterior

A muscle located on the side of the thorax, which plays a crucial role in the movement of the shoulder blade.

Rectus Abdominis

The rectus abdominis is a long muscle that extends along the front of the abdomen, known for its role in flexing the lumbar spine and helping to create a "six-pack" appearance.

External Oblique

A muscle located on the lateral part of the abdomen, part of the abdominal wall muscles, that aids in rotation and lateral flexion of the torso.

Internal Oblique

A muscle in the abdominal wall that lies below the external oblique and just above the transverse abdominal muscles, functioning to rotate and turn the trunk.