622 Answered Questions for the topic Trig

03/08/20

Pre Calc Homework Question
Using trigonometric identities, determine which of the following is equivalent to the following expression.
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02/26/20

What are the solutions of the equation 2sin(4x)=1 on the interval [0,π)?
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Trig

02/04/20

A cylindrical can has a volume of 160(pi)cm^3 and is 10 cm tall. What is the diameter?

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02/02/20

the integral of (1/x(sqrt(x^2-4))dx
Need to be answered ASAP. Please show step by steps and explain what was done in each step and why. Thanks so much!
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Trig Geometry Alg

01/30/20

Making a rectangle out of a line segment
I have a line shown below in black. I want to make the line into a rectangle with added distance d.The black line is the original line.I'm trying to calculate points A, B, C, and D. In order to... more
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01/24/20

Cartesian equation
Vector (4,5,-1) is perpendicular to the plane that contains point A(2,9,6). Find the Cartesian equation of this plane.
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01/20/20

How do you memorize the Unit Circle?
The unit circle can be daunting. It is necessary in all higher math classes and I am positive you will have a quiz or test on filling in the X and Y coordinates for each of the angles in the Unit... more
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Trig

01/14/20

Complement and supplement of 14 degrees and 21 minutes??
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01/12/20

Vector and parametric equation
1) What is the vector and parametric equation for: the horizontal line through (pi,e)2) At time t, the position of an object moving with constant velocity is given by the parametric equations... more
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01/05/20

Find cot theta/2 if tan theta = -7/24 and 3pi/4 < theta < 2pi.

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12/29/19

Find the Amplitude Equation
A wave has the following equation:y=0.3(0.7+1.2cos(pi/2))What is it's Amplitude?Is it just 0.3 because that's what I thought?
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12/29/19

Function of a single angle! Please Help!
Express this as a function of a single angle:tan 55°-tan 17°/1+tan 55°tan 17°
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12/29/19

Express the following as a function of a single angle.
cos(60°)cos(-20°)-sin(60°)sin(-20°)I got sin40. Is that correct?
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12/28/19

Solve for X Problem
Solve for x where pi/2 ≤ x ≤ 3pi/2.-4 cos^2(x) + 4sqrt(2) sin(x) + 6=0.Enter your answer as a fraction.
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12/28/19

Find x where 0 ≤ x ≤ 2pi
4sqrt(2) tan x - sqrt(2)= 3sqrt(2) tan xEnter your answers as fractions from smallest to largest.
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12/28/19

Simplify this Cosine Problem
sin^2x-cos x (cos(-x)) sin^2x
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12/28/19

Solve this Problem
sin(-x)/cos(x)Solve this problem.
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12/28/19

Simplify this Sine Problem
cos(pi/2 - x)[sec(pi/2 - x)-cos(pi/2 - x)]
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12/27/19

Simplify the Problem
cos(pi/2 - x)[sec(pi/2 - x)-cos(pi/2 - x)]
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12/27/19

Sec Csc Problem
Which expression is not equal to the following: sec^2(x)csc^2(x)A. sec^2(x) + csc^2(x)B. cos^2(x) + sin^2(x)C. sec^2(x) + sec^2(x) cot^2(x)D. (1+ tan^2(x)) csc^2(x)
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12/27/19

Sine Function Problem
a sine function has an amplitude of 4/7, period of 2pi, horizontal shift of -3pi, and a vertical shift of 1. what is the y-value of the positive function at x=pi/2?
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12/27/19

Find the Horizontal Shift

y=-2cos(1/4x- pi/2)Find the horizontal shift of this problem.
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12/27/19

Graphing Question For Trig
Which of the following points is not on the graph of y= cot x?A. (5pi/6, -sqrt(3))B. (7pi/4, -1)C. (4pi/3, sqrt(3))
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12/26/19

Cosine Problem for Trig
if y= -cos x, what x-value corresponds to a y-value of 1 between 0 and 2 pi
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12/26/19

Please Help With This Trig Problem
5(cos 220° + i sin 220°)/2(cos 115° + i sin 115°)A. 5/2(cos 105° + i sin 105°)B. 2/5(cos 105° + i sin 105°)C. 5/2(cos 335° + i sin 335°)D. 10(cos 335° + i sin 335°)
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