Determine All Solutions of the Equation in Radians $\cos \frac { \theta } { 2 }$

question 144

Multiple Choice

Determine all solutions of the equation in radians.
-Find $\cos \frac { \theta } { 2 }$ , given that $\cos \theta = - \frac { 3 } { 5 }$ and $\theta$ terminates in $90 ^ { \circ } < \theta < 180 ^ { \circ }$ .

• A) \(\frac { \sqrt { 5 } } { 5 }\)
• B) \(- \frac { \sqrt { 5 } } { 5 }\)
• C) \(\frac { \sqrt { 30 } } { 10 }\)
• D) \(- \frac { \sqrt { 30 } } { 10 }\)

---

Definitions:

Glucose-Sodium Cotransport

A physiological process using sodium gradients to transport glucose against its concentration gradient into cells, important in intestinal glucose absorption.

Mechanisms

The structural or functional parts of a system that bring about a particular outcome or effect.

Protein Pumps

Membrane proteins that use energy to transport ions or molecules across cell membranes.

ATP

Adenosine triphosphate, an organic compound that provides energy to drive many processes in living cells, such as muscle contraction, nerve impulse propagation, and chemical synthesis.