5,864 Answered Questions for the topic trigonometry

3h

Using the Law of Sines to find a triangle with one obtuse angle if ∠ A = 48 ∘ , a = 32 , b = 34 .

Assume ∠A is opposite side a, ∠B is opposite side b, and ∠C is opposite side c
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Trigonometry Math

6h

Trigonometry help
Which of the following equations in rectangular coordinates is equivalent to the equation   θ=π/6  in polar coordinates?
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Trigonometry Math

6h

Trigonometry urgent help
Which of the following equations in polar coordinates is equivalent to the equation y=2x^2   in rectangular coordinates?
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Trigonometry Math

6h

Trigonometry homework help
express the complex number -2sqrt3 - 2i in polar form re^i*θ.(Note that the exponent ^i*θ applies to theta as well.)
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Trigonometry Math

6h

Trigonometry assignment help
Express the complex number 3e^i*pi/4. in rectangular form a+bi.(Note that ^i*pi/4 are all part of the exponent.)
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Trigonometry Advanced Math

6h

The minute hand is 12 feet long. How far does the tip of the minute sweep between 9:00 and 9:50?
This is for trig/advanced math
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Trigonometry Math Precalculus

6h

Find the exact values of sin(u/2), cos(u/2), and tan(u/2) using the half-angle formulas.
sec (u) = -5/2 𝜋/2 < u < 𝜋sin(u/2) = _______cos(u/2) = _______tan(u/2) = _______
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Trigonometry Math Precalculus

6h

Use the product-to-sum formulas to write the product as a sum or difference.
sin(x + y) sin(x − y)= _________
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Trigonometry Math Precalculus

6h

Use the figure to find the exact value of each trigonometric function.
(a) sin (𝜃/2) = _____(b) cos (𝜃/2) = _____(c) tan (𝜃/2) = _____(d) cot (𝜃/2) = _____(e) sec (𝜃/2) = _____(f) csc (𝜃/2) = _____(g) 2sin(𝜃/2) cos(𝜃/2) = _____(h) 2cos(𝜃/2) tan(𝜃/2) = _____
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Trigonometry Math Precalculus Proofs

6h

Verify the identity algebraically. Use a graphing utility to check your result graphically.
sin(a/3)cos(a/3) = 1/2sin(2a/3)Use a Product-to-Sum Formula, and then simplify.sin(a/3)cos(a/3) = 1/2(sin(a/3 + a/3) + _____)= _______
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Trigonometry Math Precalculus

6h

Use the Law of Sines to solve the triangle. (Let c = 33 ft. Round your answers for a and b to two decimal places.)
A = ____ °a = ____ ftb = ____ ft
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Trigonometry Mathematics Solving Trigo

15h

trigonometry (proven question)
cos2 (x/2) = (tanx + sinx) / 2 tanx
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Trigonometry

1d

trigonometry question
Divide the complex number 3 + 2i by 7 + i, then give your result in a + bi form.
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Trigonometry

1d

trigonometry help
Convert the Cartesian coordinates (-3, -9) to polar coordinates.
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Trigonometry

1d

trigonometry help
Given: sin(a)=12/13 , cos(b)=7/25 where the terminal side of angle a lies in quadrant 2 and the terminal side of angle b lies in quadrant 4. Find the exact value of each of the following.... more
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Trigonometry Math

1d

Use De Moivre's theorem to change the given complex number to the form a + bi, where a and b are real numbers.
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Trigonometry

1d

Find the two square roots of −4i
Find the two square roots of −4i .(Give your answers in the form a + bi, where a and b are real numbers. Enter your answers as a comma-separated list.)
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Trigonometry Math

1d

Find the two square roots of...
3+3√ 3i (Give your answers in the form a + bi, where a and b are real numbers. Enter your answers as a comma-separated list.)
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Trigonometry Math

1d

Find the solutions of the equation. (Give your answers in the form a + bi, where a and b are real numbers. Enter your answers as a comma-separated list.)

Find the solutions of the equation. (Give your answers in the form a + bi, where a and b are real numbers. Enter your answers as a comma-separated list.)x3 + 343i = 0
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Trigonometry Math Calculus Precalculus

1d

Precalculus question
Simplify the expression below to cosθ(csc^2 θ-1). cot^3 θ/csc θ
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Trigonometry

1d

How do i solve for the answer?
To estimate the height of a building, two students find the angle of elevation from a point (at ground level) down the street from the building to the top of the building is 31∘. From a point that... more
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Trigonometry

1d

Trigonometry Help!

Using this ratio (1:20), show that the angle that the ramp had to make with the horizontal is closest to 3 degrees.
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Trigonometry

1d

Solve each equation for 0≤Θ≤360.
Hi! My homework is asking me to solve each trig equation for the interval 0≤Θ≤360. The problem is asking to find the answer if the equation is -10- √3 /2 = -5 + cos(Θ +270) what I did what add 5 to... more
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Trigonometry

2d

The sonar of a navy cruiser detects a submarine that is 4000 feet from the cruiser. Calculations show that the submarine 2238 feet deep. What is the angle between the water line and the submarine?
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Trigonometry

2d

A ladder 16 feet long leans against the side of a house at a point 15 feet above the ground. Find the angle of elevation of the ladder.
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