Solve the Equation in the Interval $[ 0,2 \pi )$ $\tan x \cos x - \cos x = 0$

question 21

Multiple Choice

Solve the equation in the interval $[ 0,2 \pi )$ . $\tan x \cos x - \cos x = 0$

• A) \(x = \frac { \pi } { 4 }\), \(x = \frac { \pi } { 2 }\)
• B) \(x = 0\), \(x = \frac { \pi } { 2 }\), \(x = \frac { 3 \pi } { 4 }\), \(x = \frac { 5 \pi } { 4 }\)
• C) \(x = 0\), \(x = \frac { \pi } { 2 }\), \(x = \frac { 3 \pi } { 4 }\)
• D) \(x = \frac { \pi } { 2 }\), \(x = \frac { 3 \pi } { 4 }\), \(x = \frac { 5 \pi } { 4 }\)
• E) none of these

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Definitions:

Photosynthesis

The process by which green plants, algae, and some bacteria convert light energy into chemical energy stored in glucose, using carbon dioxide and water.

Carbon Dioxide

A gas that has no color or smell, created when carbon and organic compounds are burned or through the process of breathing. This gas is taken in by plants during the act of photosynthesis.

Photosynthesis

How green plants and select organisms convert sunlight into nutrients using carbon dioxide and water.

Trophic Level

The position an organism occupies in a food chain or food web, categorized by how the organism obtains energy and nutrients, starting with producers at the base and various levels of consumers above.