9,261 Answered Questions for the topic trigonometry

Trigonometry

10/30/21

The angle of elevation from the far side of the pool to the top of the waterfall is 68° and the distance is 200 feet.
14. Find the height of the waterfall to the nearest foot. 15. Find the width across the pool to the nearest foot
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Trigonometry

10/30/21

Outside temperature over a day can be modeled as a sinusoidal function.

Suppose you know the high temperature of 67 degrees occurs at 5 PM and the average temperature for the day is 50 degrees. Find the temperature, to the nearest degree, at 7 AM.
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Trigonometry Trig

10/30/21

Verify: (1+cos squared theta)/(sin squared theta) = 2 csc squared theta - 1
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Trigonometry Trig

10/30/21

solve algebraically 2sec theta tan theta + 2sec theta + tan theta +1 = 0 with exact solutions in the interval [0,2pi]
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Trigonometry

10/30/21

Trigonometric function question
Find a possible formula for the trigonometric function whose values are in the following table.In ordered pair: (0,-3),(4,-7),(8,-3),(12,1),(16,-3),(20,-7),(24,-3)
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Trigonometry

10/30/21

Outside temperature over a day can be modeled as a sinusoidal function
Suppose you know the temperature varies between 45 and 55 degrees during the day and the average daily temperature first occurs at 10 AM. How many hours after midnight, to two decimal places, does... more
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Trigonometry

10/29/21

Trigonometry Question

y the numerator and denominator of the fraction by the conjugate of the denominator, and then simplify. 1 − cos x /1 + cos x
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Trigonometry

10/29/21

Prove cos 4x = 8 cos4x − 8 cos2x + 1.
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Trigonometry

10/29/21

If 0 < θ < π/2, then what do we know about θ/2 and 2θ? Explain.
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Trigonometry

10/29/21

Nine more than a number is equal to three less than the square of the same number. Find the number.
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10/29/21

Evaluate or simplify expressions

I had three problems I can’t figure out at all. Sec-1(Csc theta) Cos-1x+ Cos-1-X Tan-1(Cot theta)
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Trigonometry

10/28/21

Two sides and an angle
Two sides and an angle are given below. Determine whether the given information results in one​ triangle, two​ triangles, or no triangle at all. Solve any resulting​ triangle(s).b=6, c=7, B=30°
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10/27/21

How to solve this problem(tanθ/θ) in squeeze theorem when limit is θ→0(positive).Please help i got stuck in this problem.

limθ→0+ tanθ/θ
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Trigonometry

10/25/21

Polar to rectangular
The letters r and \theta represent polar coordinates. Write the given equation using rectangular coordinates (x,y). r=3
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Trigonometry Linearspeed

10/24/21

What is the linear speed of a point on the end of a 10-centimeter second hand given in meters/sec?
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Trigonometry Math Sat Math Trig

10/24/21

Use of trig formulas
a) 1+cos(8a)=?, given that 1+cos(2a)=2cos2(a)b) sin2(4a)=?, given that sin(2a)=2sin(a)*cos(a)
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Trigonometry

10/23/21

2sin2x+cosx-1=0
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Trigonometry Math Calculus Help

10/23/21

trig question please help :)
A passenger gets into a ferris wheel, and his distance from the ground (in meters) on the ferris wheel is given by the function,where s is the time in seconds. Suppose that s = 0 is the time when... more
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Trigonometry Math Sat Math Trig

10/22/21

If tan (a) = √3, find tan(60°+a)
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Trigonometry Algebra 2

10/22/21

PLEASE HELP I NEED IT TODAY
The length of a rectangle is 4 more than twice the width, x. Express the area of the rectangle in terms of x
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Trigonometry

10/21/21

Solve the equation on the interval , [0, 2π). Write numbers as integers or simplified fractions and separate multiple answers with commas. sin2x = 2sinx
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Trigonometry

10/21/21

Solve the equation on the interval , [0, 2π). Write numbers as integers or simplified fractions and separate multiple answers with commas. cosx=1/6
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Trigonometry

10/21/21

Solve the equation on the interval , [0, 2π). Write numbers as integers or simplified fractions and separate multiple answers with commas. 6sinx + 7 = 5cscx
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Trigonometry

10/21/21

Solve the equation on the interval , [0, 2π). Write numbers as integers or simplified fractions and separate multiple answers with commas. −4sin^2θ-3=0
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Trigonometry

10/21/21

Please help me solve
Use DeMoivre's Theorem to find the indicated power of the complex number. Write the result in standard form. (Round all numerical values to two decimal places.)(√7 - 3i)5
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