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
Trigonometry Math

6h

#### Trigonometry help

Which of the following equations in rectangular coordinates is equivalent to the equation   θ=π/6  in polar coordinates?
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?
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.)
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.)
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) = _______
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)= _________
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) = _____
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) + _____)= _______
Trigonometry Mathematics Solving Trigo

15h

#### trigonometry (proven question)

cos2 (x/2) = (tanx + sinx) / 2 tanx
Trigonometry

1d

#### trigonometry question

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

1d

#### trigonometry help

Convert the Cartesian coordinates (-3, -9) to polar coordinates.
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
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.)
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.)
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
Trigonometry Math Calculus Precalculus

1d

#### Precalculus question

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