Topic explanation

Standard explanation

Set angle mode correctly, state units, and check a principal answer against geometry or range.

Key points

• Applications and calculator checks
• rule
• worked example
• Applications and calculator checks: Set angle mode correctly, state units, and check a principal answer against geometry or range.
• CONCEPT AND RULE: Set angle mode correctly, state units, and check a principal answer against geometry or range.
• METHOD: For applications and calculator checks, identify the given information and required result. Select t
• Set angle mode correctly, state units, and check a principal answer against geometry or range.
• Worked pattern: arctan(34) is about 36.87 degrees in degree mode.

Labelled diagram