7. Which of the following is equal to cos 108°? A. sin 198° B. cos 198° C. sin 72° D. cos 72°

Q: Suppose 80 € [7, 27] and cos 80 find the value of cos 40, csc 40, and cot 40.

A:

Q: 口 1. Which is equal to cos ? 3 COS cos O cos 27 COS 3 O sin O sin

A: Solve the following

Q: 7. Given that tan (A) = - and angle A is in 3rd quadrant and cos(B) = –; -and 13 %3D angle B is in…

A: Since, the student has mentioned to solve part (d) and part (e), so we are solving accordingly part…

Q: 15 you are given That cos (A)= TT with A in quad Iv, COS and cos ( B) = , WITh B in quad iv. Find…

A: We will find the trigonometric value.

Q: 2.If a = 9, b = 12, and c= 15, what are sin A, cos A, and tan A?

A: Given triangle isa=9 , b=12, c=15

Q: Find the exact value of each expression.

A: Formula for sine of a sum of angles is sinA+B=sin A cos B+cos A sin B. Formula for cosine of a sum…

Q: Determine which of the following is equivalent to cos(23°) Select one: O a. cos(67°) O b. tan(67°)…

A: Given: cos(23o)

Q: 41 Compute the exact value of cos 841 ()- Suppose that is an angle in quadrant 1 and that cos y cos)…

A: Answer

Q: Suppose cos ? =15/17 and ? lies in the 4th quadrant. Choose one of those ways to find sin ?.

A: Solution is in step 2

Q: Give the exact values of each of the following:  cos(30^∘)=     cos(45^∘)=   cos(60^∘)=

A: giving the values of cosθ

Q: Which of the following is not equivalent to cos (-? 4 a. sin O b. sin(45°) cos С. cOS d. cos 4

A: Given that: cos-π4

Q: Find the exact value of the expressions cos Ca+B), sin CarB) and tan Ca+B) under the following…

A:

Q: 4. If cos A = 5/7, then sin B = ? %3D O 7/5 O 5/7 O 2/7 89 2/7

A:

Q: 36. Which of the following is not greater than cos 60°? a. cot 30° b. tan 45° C. sin 30° d. tan 60°

A:

Q: 577 then find exact values for the following: 4 If 0: sec(0) equals csc(0) equals tan(0) equals cot…

A:

Q: Which expression equals 0? cos 24" sin 24° cot 24° O cot 24° sin 24 cos 24° cot2 24° – csc² 24° O…

A: Given,

Q: - 57 then find exact values for the following: 6. If 0 sec(0) equals csc(0) equals tan(0) equals…

A:

Q: 9. Given that cos 0 =, what is sin 20, if 0 <0 < /? 12 a. 16 25 25 24 25 25 b. d.

A: Given query is to find the value indicated trigonometric function.

Q: If tan 0 9 and P(0) is in QIII, what is the value of cos(20) ? 41 41 40 41

A:

Q: If  sec ? = 5  with ? in QIV, find  cos ?,   sin ?,  and  tan ?.

A:

Q: Which of these is equal to sin 21°? A) Cos 21° B) Cos 69° C) sin 69° D) tan 69°

A:

Q: If AABC is a right triangle, is 27, AB BC is 36, and AC is 45. Which of the following can be use O…

A:

Q: 7. Use the table on page 311 or a scientific calculator to complete the statements. b. cos 57° e.…

A: To find sin(240) in scientific calculator first set the calculator to degree mode and type sin(24)…

Q: 1. If a, B are acute angles such 4 that cos a = 8 and tan B=, find 15 a. cos (a- B) b. sin 2

A:

Q: 5. If 90° <0 < 180° and sin0 , find cos 20.

A:

Q: Which of the following is not equivalent to cos (-)? a. sin 4 O b. sin (45°) C. cos (주) O d. cos

A: Which of the following is not equivalent to cos (-π/4) a. sin(5π/4) b. sin (45°) c. cos(π/4) d. cos…

Q: Which of the following is not equivalent to cos(0 + 0)? cos 8 cos 0- sin 60 sin 0 1- 2 sin? 0 O…

A:

Q: If θ= −7π/6, then (in exact values, no deicimals) sin(θ)=??  cos(θ)=??

A:

Q: Given sec 8- -13 $ 3 03 N what is cos?

A: Solving the problem by finding the value of Cos.

Q: 3. Determine the exact values for each of the following: 57 (137 (b) cos 4 - 57 (c) sin 3 (c) tan 6

A:

Q: 15 17 Vhat is the cos X of the triangle above? Vhat is the cos Y of the triangle above?

A: Since, we have been given a triangle such that XZ=15, XY=17 and YZOur Aim is to find :-(i) cos X of…

Q: to 11. If sin 18 0.309, determine the value of cos 72.

A: Answering question number 11 since 10th is already been correctly solved.

Q: 3. Which is the equivalent reciprocal of cot 75°? O cos 75° tan 75° 1 cos 75° tan 75°

A:

Q: 2. Which is the equivalent reciprocal of cot 75°? cos 75° O tan 75° cos 75° tan 75°

A: Given that cot75°solution : we know that tanθcotθ=1cotθ=1tanθso,cot75°=1tan75°

Q: What is the exact value of cos(495°)? 21 DI

A: I have used the trigonometry ratio

Q: If sin a- 4/5, what is cos B? O 5/4 O 3/5 O 4/5 O not enough information

A:

Q: Suppose sin(@) = -³/5 and sin(ø) = –³/17. with both angles are in the interval n, 3*/2]. What must…

A: sinθ=-35sinϕ=-817

Q: What is the Cos (2a) if Sin a and Cos B are the same from Question 3? 33 16 1 16 7. 16 1 118

A:

Q: Considering only the values of 0 for which cos Otan (20) is defined, which of the following…

A:

Q: Let a and 3 be angles in [0,] with COS α = 144 , sin 8: 145' 24 25 What is the value of cos(a + 3)?…

A:

Q: Let cos 6 and O is in QI. What is the value of cos(20)? 3 1 9. 9. 4 - 4/9

A: Given; Cos(theta)=2/3.

Q: If θ= 1π/4, then (in exact values, no deicimals) sin(θ)=??  cos(θ)=??

A: Here we will find the exact values of given trigonometric functions,

Q: 1-cos(7A) 2. Which is the simplified form of the expression + • cot (4) tan O no correct answer O…

A: Formula: Cos(2A)=1-2Sin2A

Q: 10. Use the formula cos(2a) = 1 – 2 sin? æ to find cos , if sin O v2 2 O v? 2 O_1 2

A: Given that       cos(2x) = 1 - 2sin2(x)  and sin(pi/4)=√2/2 Here we have to find cos(pi/2).

Q: If cos 0 = and 0 is acute, then cos 20 is

A:

Q: If cos 20 cos 40 + sin 20 sin 40 and 20 is in QIV , then cot 20 is 8 equal to 39 39 - 39 39

A:

Q: Suppose sin(0) = -3/5 and sin(ø) = 8 /17, with both angles are in the interval 7, 3" /2]. What must…

A:

Q: 30° If 15° = then use the half-angle formulas to determine the exact value of sin(15°) cos (15°)

A:

Q: If sec(a) = 25.2/19.4, then what is the value of cos(a)

A: