Q: Express each of the following in terms of trigonometric ratios of angles between 0° and 45°. (i) sin 85° + cosec 85° (ii) tan68° + sec 68° (ii) cosec 69° + cot 69° (iv )sin 81° + tan 81° (v) sin 72°+ cot 72°

Q: Use double- and half-angle formulas to find the exact value of the expression sin 22.5°.

A: Given: sin 22.5° To find: The exact value by using double and half-angle formula.

Q: subject: calculus    sin\theta =-.3148, \theta in Quadrant III

A: sin\theta =-.3148, \theta in Quadrant III Find the value of theta

Q: Use a half-angle formula to find the exact value of the expression sin 15°.

A: Consider the following formula:…

Q: 375 sin (60+ A) 393.187 Sin 75 375 sin (75)= 393.187 sin (60+A) sin(75)

A:

Q: Find the exact angle measure (in radians) or side length for each of the following. A) cos () B)…

A: Solve the given problem.

Q: If you are standing 200 ft from the face of a vertical cliff and the angle θ of elevation from the…

A:

Q: How many co-terminal angles exist for 0 = 80°? Explain.

A: Given: To find coterminal angles for θ=80°   Definition: Coterminal angles are the angles having the…

Q: Find the exact values of the six trigonometric functions of each angle, whenever possible.

A: To find the exact values of the six trigonometric functions of each angle. (a) Given angle is 180°.…

Q: A road rises 25 m for every horizontal change of 100 m. Which expression could be used to determine…

A: Given a road rises 25 m for every horizontal change of 100 m. Let  AB=100 m  and  BC=25 m We have…

Q: For each angle (in degrees) below, determine the quadrant in which the terminal side of the angle is…

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Q: cos cos 0 = 0

A: We have to find angle

Q: (с) 270° (а) 150° (е) п/3 radians (f) п/6 гadians

A:

Q: What is the value of sin(330°)?

A: Our Aim is to tell the value of sin 330°=?