Use a half-angle identity to find the exact value. cos 15° cos 15° (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)

Q: Let f(x)= sin X, - SXS g(x) cos x, 0sxsn, and h(x) tan x, 2 Find the exact value of the composite fu...

A:  We are asked to find the composition function

Q: (a) (b) To ang bis2duo inu to odmunl 2ovig tar 19dmun leor n onnobor 2. Show that each region is pol...

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Q: C. Identify the kinds of angles according to angle measure. 1.67 2. 142° 3.98° 4. 146° 5. 171°

A: If an angle measures less than 90° then it is called acute angle. If an angle measures greater than ...

Q: 9) Find DE -3 6 -9 D = 1 -8 2 3 8 -6 -4 || 年

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Q: Can techniques used in solving oblique triangles be used to solve right triangles? Justify by presen...

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Q: 13 Give the six circular function of 4.

A: To find: The six circular function of 13π4 (θ=13π4)

Q: Find all solutions of the equation sec" x – 2 = 0. T The answer is A + BkT where k is any integer an...

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Q: Fill in the blank. The distance d from the point (4,2) to the point (-4,5) is ... The distance d fro...

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Q: Establish the identity. cos (a-B) = cot B+ tan a cos a sin B cos (a-B) cos a cos B- sin a sin B cos ...

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Q: C.) Write the equal statement for any figures that can be proved congruent. Explain your reasoning. ...

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Q: Complete the sentence below. cos (-0) - cos 0 = %3D

A: The given sentence,    cos-θ-cosθ=

Q: Use a graphing utility to graph the equation below. Then use the TRACE feature to trace along the li...

A: Given that: y=34x+3

Q: (b)Create graphs of three functions below to determine if they are continuous or discontinuous. i.Co...

A: A function is continuous when its graph is a single unbroken curve. A function is called continuous ...

Q: Solve the equation on the interval 0s0<2n. sin20 = 5(cos (-0)+ 1) Select the correct choice below an...

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Q: 125, A = 25°, b = 150 a

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Q: For the following, ? is a central angle in a circle of radius r. Find the length of arc s cut off by...

A: We can find the arc length as below.

Q: Solve the equation on the interval 0s0<2n. 50 sec = 2 4. 50 What are the solutions to sec = 2 in the...

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Q: Use the exact values of the unit circle AND that fact that cosine is an even function to find: cos(−...

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Q: Simplify the direct trigo functions sin (x+y) = x + y

A: To simplify sin(x+y) in direct trigonometric function in terms of x and y We have formula  sin(a±b) ...

Q: What is the exact value of cos(495°)? A 3 2 2 D 2 2. wish B

A: All trigonometry ratios change at 90° and 270°. In second quadrant , sine and cosine are positive.

Q: id exact values for cach expression, given that cos(0) = † and cot(ø) = 3, with 0 < 0,ø < a in the t...

A: Topic:- trigonometry ratios

Q: The circle in the figure below has a radius of r and center at C. The distance from A to B is x. Red...

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Q: ÐM is an angle in a triangle with tan M = –7.12. Is ÐM acute or obtuse? Explain how you know.

A: Given:- tan M = -7.12 Objective:-  we have to tell  Angle M is acute or obtuse.

Q: Directions: Explain the following problem using the concept of triangle congruency. 1. The figure sh...

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Q: 2. Find the length of a 30° arc if the diameter is 18. Seuib

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Q: 7 8 9. 6) Find D+E -3 6 -9 -6 11 -4 D = 14 -8 12 E = -30 -18 0 8 -6 -4 20 -9 o add speaker notes

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Q: 60 30 543

A: We have to find  SinC, CosB and tanC And here using pythagores theorem

Q: The conversion equations between rectangular and polar coordinates are as follows (th the text): x =...

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Q: Prove the law of cosines starting from A^2 = (B-C)^2

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Q: The circle in the figure below has a radius of r and center at C. The distance from A to B is x. Red...

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Q: Determine the amplitude, period, quater period, and phase shift. Then, graph one period of the funct...

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Q: What is the amplitude of the graph of y = tan x? Explain. Which other trigonometric functions, if an...

A: What is the amplitude of the graph of y = tan x?

Q: Evaluating: 25-27. Use the different situationsfo simplify the function (sin x + cos x)2 + (sin x - ...

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Q: Law of Cosine There are 3 ships on the South China Sea named MV Berna, MV Maya and MV Josy. The sail...

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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: Võ, -v2)

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Q: Let cos x = - with x in QIV and find the following. 8 cot 2x

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Q: )Which of the following trig formula would you use; SOH CAH TOA, Sine Law or Cosine Law for the foll...

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Q: Use the fundamental identities and appropriate algebraic operations to simplify the expression. 1 1 ...

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Q: 4. You are on vacation sight-seeing at the coast and climb up to the top of a 50-meter light house. ...

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Q: 5) Write an equation in slope-intercept form given a line perpendicular to y = -6x+ 25 through the p...

A: Topic = Coordinate geometry

Q: 1. How many degrees are in a circle? 360 2. The ferris wheel below has a radius of 32 feet. The dist...

A: As per our guidelines we are supposed to answer only ? 3 sub- parts ( if there are multiple sub- par...

Q: Find the six trigonometric functions of t if t corresponds to the point (−0.737, 0.675) on the unit ...

A: Given query is to find 6 trigonometric functions for the point given.

Q: 8) Find BA -5 B = -7 -8 3 A = -6 6. 6 4. #7 #8 Is AB = BA ?

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Q: A pulley rotates through 67° in one minute. How many rotations (to the nearest tenth of a rotation) ...

A: topic - angles 1 rotation= 360°

Q: Question 11, solve the triangle. nearest tenth

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Q: re the equation and provide all the solutions. 5 sint-2 cos²t = 1.

A: Given query is to find the solution of the equation.

Q: Cos Gx dx

A: Given

Q: 3. Which is the value of -csc29° + cot2 9°? -1 1 undefined

A: We have to find the value of given data  By using trignometry ratio