278 Answered Questions for the topic Trigonometric Functions
Find the exact value of the trig function below.
cos(x+y) if sinx=12/13, cosx=5/13, siny=8/17, and cosy=15/17
find the value
What does tan(90degrees-x) equal to
I do not understand what tan(90degrees-x) is equal too. I understand how cos(90degrees-x is equal too sin x but I do know know what tan(90degrees-x) is equal to
Trigonometric Functions Bearings
Which formula am I supposed to use to find the distance from each station to the fire?
Two fire lookout stations are 10 miles apart, with station B directly east of station A. Both stations spot a fire. The bearing of the fire from station A is N25°E and the bearing of the fire from... more
Simple Trig, got lost and need help.
Solve the given equation over the interval [0,2): 2sinx+ (sqrt 3) sin^2x=-(sqrt 3) cos^2x A. x=0, and x=(pi/2), and x=(3 pi/2), and x=2(pi)x=(3 pi/2), and x=(7 pi/2) b. x=(4 pi/3) and x=(5... more
Need help with simple Trig!
Provide an exact evaluation of the expression: tan (-285°).
Need Urgent Trig Help!!
Find the value for sin (θ) if the following conditions hold: cos(2(theta)) = 3/5 and 90(degrees) < (theta) < 180(degrees) A. (1/25) B. (sqrt5/25) C. (2 sqrt5/5) D. (sqrt5/5)
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 Function 13.
Find the solutions of the equation: sin(2x)=1/2 in the interval [0,2pi). Show details in answer please.
Write an algebraic expression for y=tan (cos^-1 x/3) for 0<x<3.
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!!
write an algebraic expression for y-tan (cos^-1 x/3) for 0<x<3.
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
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... more
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
Find all values of theta in the interval [0°,360°) that have the given function value.
tan theta = √3/3
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... more
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... more
Express u^10cos(x)+1w3sin(x) in the form Ccos(x−?). C= ?=
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
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
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... more
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... more