12,222 Answered Questions for the topic precalculus
Precalculus Trigonometry
10h
Establish the identity. tan v − 1 / tan v +1 = 1 − cot v / 1 + cot v
Which of the following statements establishes the identity?A. tan v - 1 / tan v + 1 = tan v - 1 / tan v + 1 x tan v + 1 / tan v + 1 = tan2v - 1 / (tan v + 1)2 = 1 - cot v / 1 + cot v.B. tan v -...
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Precalculus Trigonometry
10h
Establish the identity. 1 − sec θ / tan θ − tan θ / 1 − sec θ = 2 cot θ
Write the left side of the expression with a common denominator. Do not expand the numerator.? / tan θ(1 - sec θ).Expand and simplify the numerator by rewriting without any parentheses. ? - tan2θ /...
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Precalculus Trigonometry
10h
Establish the identity.−tan t + cos t / 1−sin t = sec t.
Write the left side in terms of sine and cosine. - ? + cos t / 1 - sin t.Add fractions from the previous step. Apply the appropriate Pythagorean identity to simplify the numerator.? / cos t(1 -...
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Precalculus Trigonometry
10h
Establish the identity. (6cosθ−7sinθ)^2 + (7cosθ+6sinθ)^2 = 85
Rewrite the left side by removing the parentheses.? + 49 cos2θ + 84 cos θ sin θ + 36 sin2θRewrite the expression found in the previous step by combining like terms.? (Do not factor.)Rewrite the...
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Precalculus Trigonometry
11h
Establish the identity. 4 cot u - tan u / cot u + tan u + 1 = 5 cos^2 u
Write the left side in terms of sine and cosine.?/? + 1 (Do not simplify.)Write the expressions in the numerator and denominator from the previous step as single quotients with the common...
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Precalculus
11h
Establish the identity. tan u - sec u = - cos u / 1 + sin u
Write the left side in terms of sine and cosine.tan u - sec u = ? - ?.Simplify by writing the expression from the previous step over a common denominator.? / cos u.Rewrite the expression from the...
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1d
What is the inverse of the function f (x) = 3(x + 4)2 – 2, such that x ≤ –4?
What is the inverse of the function f (x) = 3(x + 4)2 – 2, such that x ≤ –4?
Precalculus
2d
Establish the identity. tan^2(-theta)+1=sec^2 theta
Which of the following four statements establishes the identity?A. tan2(-theta) + 1 = - tan2(-theta) + 1 = tan2(theta) + 1 = sec2(theta)B. tan2(-theta) + 1 = (-tan theta)2+1 = tan2theta +1 = sec2...
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Precalculus
2d
Solve the equation x + 6 cos x = 0 using a graphing utility
A. The solution set is.B. There is no solution
Precalculus Algebra
3d
Use f(x) = 4x − 2 and g(x) = 3 − x^2 to evaluate the expression
(a) (f ∘ g)(x)(b) (g ∘ f)(x)
Precalculus Algebra
3d
Find f + g, f − g, fg, and f/g and their domains.
f(x) = x, g(x) = square root xFind (f + g)(xFind the domain of (f + g)(x). (Enter your answer using interval notation.)Find the domain of (f − g)(x).(Enter your answer using interval...
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Precalculus
3d
Question 10 on Precalculus
f(x)=x^3+3x^2-9x+5Math problem We’ll notify you by email whenever a tutor answers your question or when you receive comments for more clarificationInclude a title to your question and a more...
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The Ironman Triathlon is a race that consists of 3 parts: a 2.4 mile swim followed by a 112 mile bike race and then a 26.2 mile marathon.
The Ironman Triathlon is a race that consists of 3 parts: a 2.4 mile swim followed by a 112 mile bike race and then a 26.2 mile marathon. Jack swims steadily at 2 mph, cycles steadily at 20 mph,...
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Calculus Question
Please answer the following questions and show all steps. Thank you in advance.
Given the points X(0, 2, –1), Y(3, 1, 2), and Z(–3, 2, 5), find (Vector XY × Vector XZ) • Vector YZ.
If vector b =...
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6d
Find all the critical numbers of the function. Find the open interval on which the function is decreasing or increasing and locate all relative extrema.
Find all the critical numbers of the function. Find the open interval on which the function is decreasing or increasing and locate all relative extrema.
f(x)=x^2(3-x)
f(x)=x^4-2x^2/3x
6d
Find the open interval on which the function f(x)=x^2/x+1 is increasing or decreasing
Find the open interval on which the function f(x)=x^2/x+1 is increasing or decreasing
6d
Find the open interval on which the function f(x)=x^4-3x^2+5x is increasing or decreasing
Find the open interval on which the function f(x)=x^4-3x^2+5x is increasing or decreasing
Precalculus
8d
I just have one question about sales tax
The sales tax of an item is 8.4%. Express the total cost, C, in terms of the price of the item, P.
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