9,261 Answered Questions for the topic trigonometry

Trigonometry

04/30/22

Let U = 8i + 13j and V = −6i + j, and find the following: 4U − 8V
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Trigonometry

04/30/22

The diagonals of a parallelogram are 26.5 m and 39.4 m. If they meet at an angle of 135.5°, find the length of the shorter side of the parallelogram. (Round your answer to one decimal place.)
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Trigonometry Geometry Algebra

04/29/22

a wheelbarrow travels 78.5 feet…
A wheelbarrow travels 78.5 feet in 25 revolutions. What diameter is the wheel to the nearest quarter of an inch?NOTE: The formula for this problem is S=r(theta) S= distance, r= radius, theta= the... more
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Trigonometry Math Math Functions

04/29/22

Prove the following is an identity...
Prove that  is an identity. Pleae keep formatting and answer neat and concise thank you!
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Trigonometry Math Fractions Functions

04/29/22

Complete the following quadratic equation...a) state the other five trigonometric ratios as fractions.
Given a) state the other five trigonometric ratios as fractions.b) determine the value of  to the nearest degree.
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Trigonometry

04/28/22

A central angle of 6 radians cuts off an arc of length 12 inches. Find the area of the sector formed.
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Trigonometry

04/28/22

Find the area of the sector formed by central angle 𝜃 = 2.6 in a circle of radius 5 centimeters.
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Trigonometry

04/28/22

Given that sin α = −3/5 , where α is in the fourth quadrant, and cos β = −12/13 , where β is in the third quadrant, find
sin(α + β) and sin(α - β)
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Trigonometry

04/28/22

Given that sin α = −3/5 , where α is in the fourth quadrant, and cos β = −12/13 , where β is in the third quadrant, find the quadrant containing α + β.
Please explain it with solutions so I can understand.
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Trigonometry

04/28/22

Given that sin α = −3/5 , where α is in the fourth quadrant, and cos β = −12/13 , where β is in the third quadrant, find sin(α - β).
Please explain it with solutions so I can understand.
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Trigonometry

04/28/22

Given that sin α = −3/5 , where α is in the fourth quadrant, and cos β = −12/13 , where β is in the third quadrant, find sin(α + β).
Please explain it with solutions so I can understand.
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Trigonometry Math Calculus

04/28/22

if cos a = 40/41, and tan b = 5/12 and neither a nor b are in quadrant 1, find sin 2b, and sec (a-b)
I've been stumped for over a week
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Trigonometry

04/28/22

A man standing near a radio station antenna observes that the angle of elevation to the top of the antenna is A = 67°. (Rest of question is in description box)
He then walks s = 100 feet further away and observes that the angle of elevation to the top of the antenna is B = 45° . Find the height of the antenna to the nearest foot. (Hint: Find x first.)
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Trigonometry Calculus Precalculus

04/28/22

Trigonometry Question 5
simplify using the correct double angle formula. cos(2x)+2sin^2 (x)
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Trigonometry Calculus Precalculus

04/28/22

Trigonometry Question

Find the exact value of cos(x/2) if cos(x)= -1/5, and 90 degrees < x < 180 degrees
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Trigonometry

04/28/22

Trig question 197
compute z^4 where z is the complex number 1/3(cos(160 degrees) + isin(160 degrees))
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Trigonometry

04/27/22

Convert to rectangular coordinates. Use exact values.
(7,3𝜋/2)
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Trigonometry

04/27/22

Convert to rectangular coordinates. Use exact values.
(43,− 𝜋/3)
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Trigonometry

04/26/22

Eliminate the parameter t in the following. x = 5 sin t, y = 5 sin t
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Trigonometry

04/26/22

Eliminate the parameter t in the following: x = cos 2t, y = cos t
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Trigonometry Precalculus

04/26/22

Apply your understanding of the graph of the sine function to explain how to develop the graph of its reciprocal. Be sure to provide accurate sketches as part of your explanation.
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Trigonometry Precalculus

04/26/22

Angles x and y are located in the first quadrant such that sin x = 4/5 and Cos y = 7/25. Determine an exact value for sin(x + y).
Looking at sin(x+y) = sinxcosy+cosxsiny, we need to first determine the values for cos x and sin y (using right-angle triangles), then we can determine the exact value of sin (x+y).
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Trigonometry Precalculus

04/26/22

Solve the Following equation on the interval [0,2pi] (In Radians)
cos x +0.75 = 0Provide an approximate answer to two decimal places
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Trigonometry

04/26/22

The four sequential sides of a quadrilateral have lengths a = 5.9 , b = 7.2 , c = 8.4 , and d = 10.3 (all measured in yards). The angle between the two smallest sides is α = 100 ° .
The four sequential sides of a quadrilateral have lengths a=5.9, b=7.2, c=8.4, and d=10.3 (all measured in yards). The angle between the two smallest sides is α=100°.
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Trigonometry

04/26/22

I need help on a trig word problem.
What bearing and airspeed are required for a plane to fly 360 miles due north in 2.0 hours if the wind is blowing from a direction of 330° at 13 ​mph?The plane should fly at ____ mph at a bearing... more
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