Which of the Following Is Equal To $\frac { \sin \theta } { \csc \theta } + \frac { \cos \theta } { \sec \theta }$

question 11

Multiple Choice

Which of the following is equal to: $\frac { \sin \theta } { \csc \theta } + \frac { \cos \theta } { \sec \theta }$

• A) \(\frac { 1 - \sin \theta } { 1 + \sin \theta }\)
• B) \(2 \cos ^ { 2 } \theta - 1\)
• C) \(2 \cos ^ { 2 } \theta\)
• D) \(1\)
• E) \(2 \csc \theta\)

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Definitions:

Ophthalmoscopy

A procedure for examining the interior structures of the eye, especially the retina, using an instrument called an ophthalmoscope.

Exophthalmometry

The measurement of the protrusion of the eyeball from the orbit, typically performed using an exophthalmometer.

Gonioscopy

A diagnostic procedure to examine the anterior chamber angle of the eye, crucial for diagnosing and managing glaucoma.

Tonometry

A diagnostic test used to measure the pressure inside the eye, which is important for diagnosing and managing glaucoma.