9052020

Q: Write the sum as a product. cos 9x + cos 4x

A: Given,           cos9x+cos4xWe know that,        cosα+cosβ=2cosα+β2cosα-β2

Q: can you help me answer this please

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Q: Question 11 6 pts Evaluate each expression without using a calculator. cos(arccos(-2)) /3 V3 2 [N 2.

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Q: I have attached the question in the image upload below. Please refer to the attachments for the ques...

A: Inverse Trigonometry: The sin of an angle is 0.2554 So we need to find the inverse of sin i.e. sin-1...

Q: If csc(t)cot(t)-cos(t)= cosa(t)/sinb(t), then  postive power a = positiv power b =

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Q: Find: a) Sin(A + B) b) Cos(A - B) **Do no find tan (A - B) 12 where 0 <A< and cosB =-; 13 15 where 1...

A: From the given data    

Q: Calculate the arc length of a sector with a radius of 22 meters and a central angle of 42° . Be sure...

A: Given Radius is 22 meters Central angle is 42° Arc length of a sector is determined as . L=θ360×2π...

Q: Find the center and the radius of the circle. Then graph the circle. 3(x+ 3)² + 3(y - 2)? = 27

A: 3(x+3)2+3(y-2)2=27 divide equation by 3(x+3)2+(y-2)2=9(x-(-3))2+(y-2)2=32compare with standard form ...

Q: lodine-131, a radioactive substance that is effective in locating brain tumors, has a half-life of o...

A: Given data,  Initial amount of substance (P0) = 22gms Half life (t1/2) = 8 days Time period (t) = 5 ...

Q: 2 sin? (0) – 2 sin (8) – 1 = 0 (a) Sketch the graph of the function. f (e) = 2sin² (0) – 2 sin (8) –...

A: Consider the given function. fθ=2sin2θ-2sinθ-1 (a) Now, use the graphing calculator to draw the grap...

Q: (7.5) Find all exact solutions to the equation 2sin(30 ) + 1 = 0 on the interval [0, 2n).

A: We have to find all exact solutions to the equation 2sin3θ+1=0 on the interval [0,2π).

Q: Find the fifth roots of -243i

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Q: For the pair of vectors, find U + V, U − V, and 2U − 3V U = 9, 5, V = 9, −5 U+V= U-V= 2U-3V=

A: We know that for two vectors a→=a1,a2 and b→=b1,b2, a→+b→=a1+b1,a2+b2         ⋯⋯1a→-b→=a1-b1,a2-b2  ...

Q: Use long division to perform the indicated division. 1. Divide 3x? - 5x? + 3 by x + 2

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Q: 5) y =2coi %3D

A: Given that: The equation of the function is y = 2 cot θ3 +5π6 .

Q: 10. In AABC, a = 6, b = 12, and m<C = 60°. What is the length of the side c to the nearest integer? ...

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Q: ind cose, given that sin0 = -5/13 and 0 s in quadrant III. %3D elect one: a. -12/13 b. -5/12 C. 12/5...

A: Answer is- Option a is correct Explanation is given below...

Q: If sin A = 1/√5 find cos 2A

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Q: Write the complex number in trigonometric form.  −35 + 12i

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Q: Write an expression that gives all solutions to the equation. (Enter your answer in the form a + brk...

A: sinx+cosx=0

Q: Find the exact value of the following expression. DO NOT give a rounded decimal as your answer. sin(...

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Q: Consider the following.

A: given u=(6,7)u⇀=6i+7jv=(8,1)v⇀=8i+ja.dot product of u and visu⇀.v⇀=(6i+7j).(8i+j)=48+7=55

Q: Verify (prove) the following identity. ,2 Csc x cos“ x + sin x CS x

A: Given : cscxcos2x + sinx = cscx 

Q: Solve the equation for exact solutions over the interval [0, 2x). 8 tan 3x = 8

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Q: Find all solutions to the following triangle. (Round your answers to the nearest whole number. If ei...

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Q: Prove the identity (sin x - cos x)2 = 1 - sin 2x

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Q: 2. Divide x3 + 2x2 - 3x + 4 by x - 7 Answer:

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Q: 3. Use the Descartes' Rule of Signs to analyze the number of positive and negative real roots and th...

A: Given function is, P(x)=-x6+5x5-3x4+x3-8x2+4x-2

Q: A person standing on the street looks up to the top of a building and finds the angle of elevation i...

A: Given that the person is standing near the building   

Q: I'm not sure how to find these two out, any help?

A: a) In the first right angles triangle, sin22°=length of perpendicularlength hypoteneus0.3746=3.2xx=3...

Q: Consider the following sequence of successive numbers of the 2^k-th power:1, 2^2^k, 3^2^k, 4^2^k, 5^...

A: The sequence of successive numbers of the 2k-th power: 1, 22k, 32k, 42k, 52k, ... .

Q: How do I solve 23?

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Q: Plz

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Q: Please help me answer this

A: Answer is- -tantheta Explanation is given below...

Q: Find the exact value of the following expression. DO NOT give a rounded decimal as your answer. tan(...

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Q: I have attached the question in the image upload below. Please refer to the attachments for the ques...

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Q: 12 The solution set for the equation sin 0= 2 - is {225°,315°}. Use this information to solve the fo...

A: Given: sinθ=-22 has a solution set 225°,315°. We want to solve sinθ2=-22 over the interval [0°, 360°...

Q: 1. Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the poss...

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Q: Find x correct to 2 decimal places. NOTE: The triangle is NOT drawn to scale. 93 59° 26°

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Q: Trace the curve: r = 1/2 sinꝋcos^3ꝋ.

A: The equation of the curve is r=12sin θcos3θ. First check the the symmetry of the curve. The curve is...

Q: Find the missing coordinate.

A: To find missing coordinates

Q: express as a product sin40 degrees- sin12 degrees express as a sum or difference 2sin47 degrees cos3...

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