Still have math questions?

Ask our expert tutors
Trigonometry
Question

Evaluating Sine, Cosine, and Tangent In Exercises ...

Evaluating Sine, Cosine, and Tangent In Exercises 13-22, evaluate (if possible) the sine, cosine, and tangent at the real number. 13. \(t = \frac { \pi } { 4 }\) 

15. \(t = - \frac { \pi } { 6 }\) 

Answer

13)\(\sin ( \frac { \pi } { 4 } ) = \frac { \sqrt { 2 } } { 2 }\)

\(\cos ( \frac { \pi } { 4 } ) = \frac { \sqrt { 2 } } { 2 }\)

\(\tan ( \frac { \pi } { 4 } ) = 1\)

 

15)\(\sin ( - \frac { \pi } { 6 } ) = - \frac { 1 } { 2 }\)

\(\cos ( - \frac { \pi } { 6 } ) = \frac { \sqrt { 3 } } { 2 }\)

\(\tan ( - \frac { \pi } { 6 } ) = - \frac { \sqrt { 3 } } { 3 }\)

 

Solution
View full explanation on CameraMath App.