Find the Sign of the Following $\tan \frac { \theta } { 2 }$

question 118

Multiple Choice

Find the sign of the following.
- $\tan \frac { \theta } { 2 }$ , given that $\theta$ is in the interval $\left( 90 ^ { \circ } , 180 ^ { \circ } \right)$ .

• A) positive
• B) negative

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Definitions:

Hypothetical Hormone

A theoretical hormone proposed to exist based on observed physiological effects, but not yet identified or isolated.

Coleoptile

A protective sheath covering the emerging shoot in monocotyledonous plants, such as grasses, allowing the young shoot to pierce through the soil.

Unidirectional Light

Light that travels in a single direction, often used in scientific studies to understand plant growth or behavior.

Thigmomorphogenesis

The growth and structural change in plants in response to mechanical stress or touch.