9,261 Answered Questions for the topic trigonometry

Trigonometry Trig

12/13/21

Prove: 1-(sin^2(theta)/(1+cos(theta)) = cos(theta)
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Trigonometry Trig

12/13/21

prove: sec(2theta)= (cos(theta)/(cos(theta)+sin(theta)) + sin(theta)/(cos(theta)-sin(theta))
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Trigonometry Precalculus

12/12/21

Pre Calculus/ trig question

We are told that sinθ=3. From this we know... tanθ=10/3 None of these are correct. cscθ=1/3 cotθ=10/3
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Trigonometry Precalculus

12/12/21

Pre Calculus/ trig question

We are told that tanθ=1, and that 𝜃 is in Quadrant II. From this we know... The person doesn't know what they are talking about because that can't happen. None of these are... more
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Trigonometry

12/11/21

Solve the following problems.
A ship is sailing due north. At a certain point, the captain of the ship notices a lighthouse 12.5 km away from the ship, at the bearing of N 38.0° E. Later on, the bearing of the lighthouse... more
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Trigonometry

12/11/21

Solve the following problems.
A ramp is inclined at an angle of 41.3° with the ground. One end of a board, 20.6 ft in length, is located on the ground at a point P, 12.2 ft from the base Q of the ramp, and the other end rests... more
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Trigonometry

12/11/21

Solve the following problems.
A flagpole is situated at the top of a building 115 ft tall. From a point in the same horizontal plane as the base of the building the angles of elevation of the top and bottom of the flagpole are... more
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Trigonometry

12/11/21

Solve the triangle. Express the results to two decimal places.
b = 408, α = 52°42′, β = 75°36′
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Trigonometry

12/11/21

Solve the triangle. Express the results to two decimal places.
c = 53.2, β = 48.6°, γ = 61.4°
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Trigonometry

12/11/21

Solve the triangle. Express the results to two decimal places.
a = 24, α = 34°, β = 71°
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Trigonometry

12/11/21

Two angles of a triangle and the measure of the side opposite one of them are given. Find the measure of the side opposite the other given angle, but do not use a calculator.
c = 88, α = 30°, γ = 120°
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Trigonometry

12/11/21

Two angles of a triangle and the measure of the side opposite one of them are given. Find the measure of the side opposite the other given angle, but do not use a calculator.
a = 4.6, α = 45°, β = 60°
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Trigonometry

12/11/21

ℎ(𝑥)=3𝑥+4, hello i need help solving the inverse!
ℎ(𝑥)=3𝑥+4a.)Find the inverse function ℎ^−1(𝑥).b.) Graph both h(x) and h^-1(x)
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Trigonometry

12/11/21

For each of the following functions, find the intercepts
a.) 4𝑥−5𝑦=8x:intercept: ?y: intercept: ?b.) 𝑦=𝑥^2−2𝑥−15x:intercept: ?y: intercept: ?Hello! I just need a little help finding the intercepts for these two problems! Thank you!
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Trigonometry

12/11/21

Given 𝑓(𝑥)=𝑥^2 −4 and 𝑔(𝑥)=2𝑥+3
Given 𝑓(𝑥)=𝑥^2 −4 and 𝑔(𝑥)=2𝑥+3, find each of the following:a.) (f+g)(3)b.) (f-g)(x)c.) (𝑓∙𝑔)(𝑥) d.) (f/g)(-1) e.) (𝑓∘𝑔)(𝑥)Hello! I need help solving a to e. Thank you!
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Trigonometry

12/11/21

Given 𝑓(𝑥)=𝑥^2 −4 and 𝑔(𝑥)=2𝑥+3
Given 𝑓(𝑥)=𝑥^2 −4 and 𝑔(𝑥)=2𝑥+3, find each of the following:a.) (f+g)(3)b.) (f-g)(x)c.) (𝑓∙𝑔)(𝑥) d.) (f/g)(-1) e.) (𝑓∘𝑔)(𝑥)Hello! I need help solving a to e. Thank you!
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Trigonometry

12/11/21

For each of the following functions, find the intercepts.

a.) 4𝑥−5𝑦=8 x:intercept: ? y: intercept: ?b.) 𝑦=𝑥^2−2𝑥−15 x:intercept: ? y: intercept: ?Hello! I just need a little help finding the intercepts for these two problems! Thank you!
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Trigonometry

12/11/21

ℎ(𝑥)=3𝑥+4, hello i need help solving the inverse!
ℎ(𝑥)=3𝑥+4a.)Find the inverse function ℎ^−1(𝑥).b.) Graph both h(x) and h^-1(x)
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Trigonometry

12/11/21

𝑔(𝑥)=√𝑥+2 +1

𝑔(𝑥)=√(𝑥+2) +1a.) Graph: b.) Is it a function? c.) Is it one-to-one?d.) Domain:e.) Range:Hello! I need help with these problems thank you!
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Trigonometry

12/11/21

𝑓(𝑥)=(𝑥+3)^2

𝑓(𝑥)=(𝑥+3)^2 a.) Graph:b.) Is it a function? c.) Is it one-to-one? d.) Domaine.) Range:
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Trigonometry

12/11/21

Solve each of the following equations and simplify your result completely
a.) 𝑥−5/3 = 𝑥+2/5b.) √(8−2𝑥) = 𝑥+8I need help with solving, please!
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Trigonometry

12/11/21

Rationalize the denominator and simplify your result completely
a) 9/√3𝑥b. 2/3−√5
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Trigonometry

12/11/21

Factor each of the following polynomials
a. 𝑥^4 −16 b. 6𝑥^2 −7𝑥−5
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Trigonometry

12/11/21

Simplify each of the following expressions.

a. (2𝑥+3)^2 −(𝑥−4)(3𝑥+1) b.3√16𝑥^10𝑦^6
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Trigonometry

12/11/21

Does the Theorem (Roots) have to be used to find the nth roots of a complex number, or can other algebraic methods (such as the quadratic formula) be used instead? Explain.
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