1. If cos(x) = 0.4, the value of sin(90 - x) = 2. if cos(x) = 0.6, then the value of cos(-x) =

Q: IF 0= arccos x,-1 ≤ x ≤ 1, then cos0 = x and 0 ≤ 0 ≤ T

A: Cosine positive 1st and 4th quadrant

Q: Solve the following inequality. (x-5) (x-2)(x+7) ≥0 Write your answer as an interval or union of…

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Q: Sketch the curve of the parametric equation.   x=4sin t/2, y=4cos t/2.

A: we know that sin2(θ)+cos2(θ)=1 we use this information to sketch the graph of the given parametric…

Q: The Roman Colosseum is an ellipse with major axis 620 ft. and minor axis 514 ft. 1.Find a², b², c²…

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Q: 2. David, who plans to go to university in 4 years, estimates that he will need $40 000. He is…

A: David, who plans to go to university in 4 years, estimates that he will need $40000. He is…

Q: Use Descartes' Rule of Signs to determine the possible numbers of positive and negative real zeros.…

A: Descartes Rule of signs : For f(x) , the number of sign changes between consecutive pairs of terms…

Q: Given the vector i = (6,5), find the magnitude of the vector. Write answer rounded to 1 decimal…

A: Given data u→=6, 5

Q: Find a possible formula for the trigonometric function whose values are in the following table. X y…

A: I am going to solve the problem by using some simple trigonometry to get the required result of the…

Q: 6. (sin x-cos x) dx

A: Given integral  6. ∫( sinx - cosx )dx

Q: Use the antiderivatives of trigonometric functions to evaluate the following. 1. f- sin x dx 2. f5…

A: Use the antiderivatives of trigonometric functions to evaluate the following. 1. f- sin x dx 2. f5…

Q: Solve AABC where (round all values to one decimal) a = 7km, b = 11km, c = 13.5km A = B = C= O O

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Q: Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the…

A: The standard form of sine graph is fx=AsinBx-C+D⇒A=Amplitude⇒T=2πB,T is time period⇒C=Phase shift…

Q: Prove the identity: 1 1 2tanx 1sinx 1+ sinx cosx isinx L.H.S. itsinx

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Q: Please show every step. Solve 2 sin (2/3x) = root 3 Solve for both sin or y-values on the unit…

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Q: 8. ZK is located in the third quadrant with a secant of -6. Find exact expressions for the other…

A: First you need to know the basic rule of All sin tan cos which is shown below.

Q: Find a formula for cos (3θ) in terms of cos (θ) and sin (θ) using de Moivre’s Theorem.

A: To find a formula for cos3θ in terms of cosθ and sinθ by using De Moivre’s Theorem.

Q: Semester 2 PRACTIC Find the measure of each 1) y 60°

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Q: 8. Given a sinusoidal function with amplitude 3, horizontal translation to the right 30°, vertical…

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Q: Evaluate the following limit lim t-4 t-√√3t+4 4-t

A: (i)  let H=limt→4t-3t+44-t

Q: Use the triangle shown to the right to evaluate the following expression. If necessary, express the…

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Q: 2 Ꮎ 110 ft T 100 ft

A: From given triangle  height : h=100 ft base : b=110 ft

Q: 2 1 + cos2x can be simplified to: O sin²x O csc² x O cos²x O sec² x

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Q: An equation is given. (Enter your answers as a comma-separated list. Let k be any integer. Round…

A: cosθ2-1=0

Q: Given z₁ = 8(cos 45° + i sin 45°) and z2 = 4(cos 210° + i sin 210°), what is 2122?

A: We are given that  z1 = 8(cos45°+ i sin45°)  z2 = 4(cos210°+i sin210°) We have to find z1*z2 We will…

Q: or The graph of a cotangent function is given. Select the equation for each graph from the following…

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Q: The angle t is an acute angle and sin t and cos t are given. Use indentities to find tan t, csc t,…

A: The given trigonometric values are: sin t=57cos t=267

Q: Find the measure of the side of the right triangle whose length is designated by the lower case…

A: sinA = opposite hypotenuse

Q: From the top of a 228-ft lighthouse, the angle of depression to a ship in the ocean is 22°. How far…

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Q: A population of rabbits oscillates 16 above and below an average of 123 during the year, hitting the…

A: A population of rabbits oscillates 16 above and below an average of 123 during the year, hitting the…

Q: Find all all solutions on 0 ≤ 0 ≤ 360 to the following equation (round all numbers to one decimal)…

A: The given trigonometric equation sin2θ+4cos2θ-7cosθ+1=0. We have to find the solve this equation.

Q: Divide 6. (cos(240) + i sin(240)) 10 (cos(130) + i sin(130)) .

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Q: Solve the following inequality. (3-x) (x + 1)(x+5) ≤0 Write your answer as an interval or union of…

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Q: Divide 4. (cos(275) + i sin(275°)) 8. (cos(265) + i sin(265°)) Fill in the missing values below.…

A: We know that the formula sin^2A+cos^2A=1  And cos^2A-sin^2A=cos (2A)

Q: than one answer besides C. I know it's C, but what are t

A: We have to find the expression of A.

Q: Question 7 O O O ¿Cuál de las siguientes opciones muestra la matriz aumentada para el sistema de…

A: An augmented matrix is a matrix associated with the system of equations and it is formed using the…

Q: Given the vector = (-4,-3), find the magnitude and angle in which the vector points (measure-…

A: As per instruction, we will be answering the first question.

Q: Sketch the angle in standard position for each point. Then find the missing side length of the t and…

A: AB=32+42=5sinθ=35cosθ=45tanθ=34

Q: Use the Pythagorean Theorem to find the length of the missing side of the right triangle. Then find…

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Q: Q.4 Convert to standard form: z = 3/5 (cos5π4+ isin5π6) -3 - 4i This cannot be converted 4 - 3i…

A: The standard form of a complex number is a+ib. Two vectors can be added by adding the corresponding…

Q: (1+i)^9 a+bi form

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Q: Q.1 Identify which matrix is in reduced echelon form. Q.5 Find all solutions of the system of…

A: Note :- Since you have posted multiple questions, we will provide the solution only to the first…

Q: Write in Polar form: r(cos 0 + i sin 0). (0 ≤0 < 27 and round to 3 decimal places) -2-9i T Submit…

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Q: Use a calculator to find the value of the acute angle 0 in radians, rounded to three decimal places.…

A: We have,  cos θ = 0.1607

Q: A person goes up a set of stairs of height 20 feet and boards the bottom of a ferris wheel of radius…

A: To find when the rider reaches a height of 50 feet above the ground, we need to solve the equation…

Q: Given the triangle places. Area = 24/ 21 Question Help: Video 14, find the area of the triangle.…

A: The sides of a triangle are  a=21, b=14, c=24 "Note as per the rules, we are supposed to answer the…

Q: Use the triangle shown to evaluate the following expression. If​ necessary, express the value…

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Q: 7. In this cone (right) the angle YXZ = 60°. Calculate: a) the length XY, b) the length YZ, c) the…

A: We have to find the length of the given sides and then find the circumference of the base. We will…

Q: Use a calculator to find the value of the acute angle 0 in radians, rounded to three decimal places.…

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Q: Which of the following sets of parametric equations represents (x + 3)2 + (y-5)² = 4?

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Q: Given the points P(8, −6) and Q(8, —2), find the magnitude and direction of PQ. Select the correct…

A: Given the points P8, -6 and Q8, -2, to find the magnitude and direction  of PQ→.