278 Answered Questions for the topic Trigonometric Functions

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)]

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.

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

#### 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

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.

Trigonometric Functions Trig Idenity

05/02/16

#### trigonometric functions

Hi,
Am having trouble with this question and any help would be greatly appreciated.
The heights of two different robot arms (in cm) at time t (in seconds) are given by
y1...
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05/01/16

#### Find sin theta if tan theta = sqrt3 / 3, and falls in quadrant 2

Answer choices:
A) sin theta = -1/2
B) sin theta = 1/2
C) sin theta = sqrt3/2
D) sin theta = - sqrt3/2

04/29/16

#### Please determine the amplitude, period(in hours), and determine the mid-line (write in an equation)?

At midnight the water at a particular beach is at high tide. At the same time a gauge at the end of a pier reads 10 feet. Low tide is reached at 6 AM when the gauge reads 4ft.

Trigonometric Functions

04/16/16

#### Use the half angle formulas to determine the exact values of the sine, cosine, and tangent of the angle

pi/12

Trigonometric Functions

04/16/16

#### Find the exact solutions of the equation in the interval [0,2pi) enter answers in comma separated list

sin2x+sinx=0

Trigonometric Functions

03/27/16

#### use the given information to find the values of the remaining five trigonometric functions

cot(x)=(1/2), π<x<(3Π/2)

Trigonometric Functions

03/23/16

#### a unit circle has a radius of 1 unit. explain why one complete rotaion around a unit circle is a distance of 2pi

trigonometric funtions

03/10/16

#### TERMINAL SIDE: lines & trigonometric functions

Find sin (angle) if the terminal side of (angle) is in the third quadrant on the line y=1/2x

03/06/16

#### Trigonometry Word Problem

Suppose the depth of the tide in a certain harbor can be modeled by y=23 + 4 cos (pi/6 x t), where y is the water depth in feet and t is the time in hours. Consider a day in which t=0 represents...
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03/05/16

#### Write an equation of a Ferris wheel

Problem: You are about to begin your ride at the very bottom of the ferris wheel, and rotate counter-clockwise from there. Write a possible equation of the graph with these details: Diameter is...
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Trigonometric Functions

02/29/16

#### Solve trigonometric equation

Tan^-1 2x = sin^-1x
please give exact answers

Trigonometric Functions

02/18/16

#### find the value of all other five trigonometric functions from the given functions sinx=5/13, cosx>0 and cosx=-4/5,sinx>0. thanks!

find the value of all other five trigonometric functions from the given functions sinx=5/13, cosx>0 and cosx=-4/5,sinx>0. thanks!

Trigonometric Functions

02/15/16

#### side 10 with 80 degree ad missing side

Its a right triangle with the one side 10 and the on degree of 10 and trying to find the missing angle

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