Use a Reference Triangle in an Appropriate Quadrant to Find $\sec ^ { - 1 } ( \sqrt { 2 } )$

question 345

Multiple Choice

Use a reference triangle in an appropriate quadrant to find the angle.
- $\sec ^ { - 1 } ( \sqrt { 2 } )$

• A) \(\frac { 3 \pi } { 4 }\)
• B) \(\frac { 7 \pi } { 4 }\)
• C) \(\frac { \pi } { 4 }\)
• D) \(\frac { \pi } { 4 } \pm 2 \pi \mathrm { n } , \frac { 7 \pi } { 4 } \pm 2 \pi \mathrm { n }\)

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