296 Answered Questions for the topic Trigonometric Functions
Trigonometric Functions
04/12/17
tan(theta + 30 degrees) =-6
Find all solutions in the interval [ 0,2pie]
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04/11/17
7sin^2 theta - 9 cos2 theta = 0
Find the solutions for the equation 7sin^2 theta - 9 cos2 theta = 0 for 0 < or equal to theta < 360 degree.
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Trigonometric Functions Geometric Series
04/06/17
how is cos24 = .424
it says thats the answer i dont know how that is possible because cos24 = .9135... if thats the case what is cos28?
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03/26/17
Please help me with trigonometry, my teacher is no help and I don't understand. I'm not looking only for answers, need to learn how to do it
A survey team was to measure the distance across a river over which a bridge is to be built. They set up a survey post on their side of the river directly across from a large tree on the other...
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Trigonometric Functions Trigonometry Identities
03/19/17
In a △PQR, if 3sinP+4cosQ = 6 and 4sinQ+3cosP=1, then the angle R is equal to:
The question is-In a △PQR, if 3sinP+4cosQ = 6 and 4sinQ+3cosP=1, then the angle R is equal to:
03/15/17
Bearing problems & Airplane problems
A woman looks at a plane flying directly at her at a constant height and a speed. The plane is traveling 400mph. She first sees the plane at an angle of elevation of 6 degrees with the horizontal....
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03/12/17
Advanced Functions
the ferris wheel at an amusement park measures 16m in diameter. the wheel does 3 rotations every minute. the bottom of the wheel is 1m above the ground
is this the write equation for...
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03/12/17
Advanced Functions Help
the ferris wheel at an amusement park measures 16m in diameter. the wheel does 3 rotations every minute. the bottom of the wheel is 1m above the ground... a) determine the simplest equation that...
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03/10/17
Function word problem please HELP
The Celestial Bakery currently sells an average of 750 wedding cakes per month and charges an average of $200 per cake. Market research indicates that for every $5 increase in the price of a cake,...
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03/06/17
Shortest length of a road
Two corridors 3m and 4m wide meet at right angles. Find the length of the shortest thin straight road that can pass horizontally around the corner.
Trigonometric Functions Solve Equation
02/28/17
Solve sin (2x)
Solve: sin(2x) = √2 cos x
0 ≤ x ≤ π
Thank you for your help!
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Trigonometric Functions
02/28/17
Trigonometry f(x)
let f(x) = sin3x + cos3x (tan x)
Let sin x = 2/3
Show that f(2x) = - (4√5) ÷ 9
Thank you for your time!
02/12/17
Describe a real-world phenomenon that can be modeled by one of these two trigonometric functions.
The sine and cosine functions are used to model periodic behavior. find an internet resource that discusses the periodic behavior.
01/13/17
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
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Trigonometric Functions
12/16/16
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
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Trigonometric Functions Bearings
12/13/16
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...
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12/11/16
Draw the graph representing High and low tide from midnight. Make a trigonometric function that describes the high and low tide behavior from midnight.
a beach has reported its high tide to be at a depth of 58ft and its low tide to be at a depth of 2 ft. High tide occurs at 6:30 am while low tide occurs 6 hours and 12 minutes after high tide. Draw...
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12/03/16
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...
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11/30/16
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)
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Trigonometric Functions
11/28/16
Rewrite Expression
Rewrite the expression in terms of sines and cosines only and then simplify the resulting expression.
tanx/secx+1 +tan x/sec x-1
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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.
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