299 Answered Questions for the topic Trigonometric Functions
Trigonometric Functions
11/28/16
Rewrite Expression 14.
Rewrite the expression in terms of sines and cosines only and then simplify the resulting expression.
cot x + tan x + csc x sec x
Trigonometric Functions
11/28/16
Trigonometric Function 13.
Find the solutions of the equation: sin(2x)=1/2 in the interval [0,2pi).
Show details in answer please.
Trigonometric Functions
11/26/16
Algebraic Expression
Write an algebraic expression for y=tan (cos^-1 x/3) for 0<x<3.
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Trigonometric Functions
11/26/16
Simplifying Trig Functions Using Substitution
Simplify y=x/sqrt of (7-x^2) using substitution x= sqrt of 7 cos theta for 0<theta<pie/2. Please Help!!
Trigonometric Functions
11/26/16
Algebraic Expressions
write an algebraic expression for y-tan (cos^-1 x/3) for 0<x<3.
Trigonometric Functions
11/05/16
Simplifying the following expression to a single trigonometric function
Could someone help walk me through how to simply this expression to a single trigonometric function?
(1+(sin2x/cos2x))/sec x
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10/26/16
Trig question
My math is online and the helper says that sin∅= y/r= (5√74)/74 = 144.5° . how do u convert that fraction into degrees.
I did try the inverse of ∅=sin-1(y/r) , but for my example that only comes...
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Trigonometric Functions
10/09/16
If sin of theta is about -0.7660, which of the following represents an approximate value of tan of theta for 180°<theta < 270°
O.7660
0.8392
1.1916
1.4198
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09/25/16
Find all values of theta in the interval [0°,360°) that have the given function value.
tan theta = √3/3
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09/21/16
A.) Find the sinusoidal function of the form. B.) Use the function found in part (A) to predict the height of the water at the next high tide. C.)Draw a graph
Suppose that the length of time between consecutive high tides is approximately 12.5 hours. According to the National Oceanic and Atmospheric Administration, on Saturday, August 7, 2004 in...
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Trigonometric Functions
09/18/16
trigonometric expressions simplifying
cos(x) / 1+ sin(x) + 1+sin(x) / cos(x)
How do I express this as a number divided by a trigonometric function?
WHat i attempted was to combine the fractions and I...
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Trigonometric Functions
09/15/16
The displacement of a harp string
The displacement, x, in millimeters, of a harp string, t, seconds after it is initially plucked is modeled by the function, x(t)=12sin(20πt)
a) what are the amplitude and period of this...
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Trigonometric Functions
08/14/16
trigonometry question
Express u^10cos(x)+1w3sin(x) in the form Ccos(x−?).
C=
?=
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08/04/16
Math Help? *MULTIPLE CHOICE*
A value added to a variation that is proportional, is known as a/an _______. A. extra B. addend C. constant D. subtend
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08/04/16
Math Help? *MULTIPLE CHOICE*
In the equation y = kx, k represents the ____________________. A. constant of change B. variability quotient C. scalar D. constant of variation
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07/25/16
Sinusoidal function
Two Ferris wheels are rotating side by side at the Math Fair. The first Ferris wheel has a radius of 7m and makes one complete revolution every 16s. The bottom of the wheel is 1.5m above the...
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07/20/16
Sinusoidal function
The propeller of a boat at dock in the ocean will rise and fall with the waves. On a particularly wavy night, the propeller leaves its resting position and reaches a height of 2m on the peaks of...
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06/27/16
function and trig
The function g: x ----> a + bsinx where
a=4 and b=2
is defined for the domain pi/2 ≤ x ≤ k.
Find the largest value of k for which g(x) has an inverse.
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06/17/16
precalculus final monday please help me remember the corrects steps to solve these questions as i have lost my notes! Thanks!
1) determine exact value of each trigonometric ratio
a)sec 315°
b)cos 5pi/6
c)cot 270
d)sin(-4pi/3)
2) find exact roots
a)tan θ = √3, -180° ≤ θ<180°
b)sec θ = 2/√3, -2Ω ≤ θ < 2Ω
Trigonometric Functions
06/16/16
Can you help me with trigonometric functions?
Sketch a graph of each function for one period. Label the x-intercepts and any asymptotes.
a) f(x)=sin(x-pie)-1
b) f(x)=-3cos[4(x+pie/2)]
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Trigonometric Functions
06/08/16
Find all the values of ?, 0 = ? = 3p, for which sin2 ? = 1 2.
Find all the values of θ, 0 ≤ θ ≤ 3π, for which sin2 θ = 1 2. Give your answers in radians (not degrees) and use two decimal places of accuracy where required.
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Trigonometric Functions
06/04/16
How can I proof that sin alpha +cos alpha < radican2
How can I use the fact that sine(-b)=-sin b and cos(-b)= cos b yo probé that sin a cos a < radical 2
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Mary plans to have a fence built around the triangular garden shown to the right. To the nearest foot, what length of fence will she need to buy?
SAS
Side c= 37ft
Angle A= 62(degrees)
Side b= 30ft
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Trigonometric Functions
05/03/16
What is the perimeter of a right triangle that has a leg of length 5 inches and whose hypotenuse is 2 inches longer than the third side?
My math teacher gave me this weird problem and I do not like it so you need to solve it.
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05/02/16
Find the exact value of tangent for the angle in standard position with the terminal side located at A.
A) -1
B) 1
C) 0
D) undefined
E) none of these
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