Evaluating Sine, Cosine, and Tangent InExercises 13–22, evaluate (if possible) the sine, cosine,and tangent at the real number.13. t = π4 14. t = π315. t = −π6 16. t = −π417. t = −7π4 18. t = −4π319. t = 11π6 20. t = 5π321. t = −3π2 22. t = −2π

Q: letter (A,B,C,D, or E) in each blank. a b 1.1 - cos² (x) 2.1 3. cot (x) 4. tan(x) 5 sec² (r) A. sin²…

A:

Q: sin ;cos T = 6.

A: To find sin-π6=     cosπ=

Q: cos 2.

A: Using the trigonometric formula,  cos2θ=2cos2θ-1⇒cos2θ+1=2cos2θ⇒cos2θ+12=cos2θ⇒cos2θ=cos2θ+12 Taking…

Q: Write the equation of a sine function that has the given characteristics. Amplitude: 19 Period: 4…

A: Given that we need to find the equation of sine function whose  Amplitude = 19 Period = 4…

Q: 1. Draw the angle, mark reference angle, and find the exact value (for a and b) (a) sin(-210 (b)…

A: To draw and find angles

Q: What is the value of x in the figure below? 85° (3x - 5)0

A: x = 30   explanation is given in below step

Q: How do you convert the given cosine to the given sine function in the attached image?

A: To convert cosine in y=6 cos π7t  to y=6sinπ7t+72.

Q: 3 Let cot (0) = and sec(0) < 0. 4 - a. Place U in a coordinate system in correct quadrant and solve…

A: (a) Here, cot θ=34⇒cos θsin θ=34 Now, sec θ&lt;0⇒cos θ&lt;0 is given but cot θ&gt;0. So, tan θ is…

Q: Draw the angle on a unit circle (be sure to indicate the direction of the angle; don't just draw the…

A: Due to Bartleby guidelines, only 3 sub parts can be solved. Please repost the remaining questions to…

Q: Find the exact value.

A: We have to find exact value of the trigonometric angle: a  sin 2π3b  sin -5π4 We know the…

Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.