281 Answered Questions for the topic Trig

2d

Math Equation Help

Find the vertical shift.y=0.9(sin(pi/3-x)+0.01)
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3d

World Problem Solving

A mouse wanders through a maze 3 feet East, 4 feet North, 2 feet East, & then 5 feet North. How far is the mouse from its starting point?Round to the nearest tenth.
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3d

Word Problem Solving
A ship's bearing is 240°. If a submarine, due east of the ship, shoots a torpedo traveling 5 times as fast as the ship, what angle should the submarine fire the torpedo in order to hit the ship?
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4d

Problem Solving (Word Problem)
A plane, 50 miles away from its destination, is flying toward the airport at an altitude of 30,500 ft. Later, this same plane is 20 miles from the airport and has descended to an altitude of 18,000... more
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7d

use identities to find the value of each expression
If cos( pi/2 - Θ ) = -0.21, find sin( -Θ)
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12d

Problem Solving (Word Problem)
The number of hours of daylight on the summer solstice (the 172nd day of the year) is 15.3 and the number of hours of daylight on the winter solstice (the 355th day of the year) is 9.1. Complete... more
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18d

Trigonometric Function
Use the​ power-reducing formulas to rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.17sin4x
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20d

Word Problem Solving
An 80-feet rope is attached to a boat 7 feet above the water level and a boy jumps over the wake while wakeboarding. What is the distance between his hands and the water level if the angle given is... more
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20d

Word Problem Solving
a jet airliner, flying initially at 300 mi/hr due east, suddenly enters a region where the wind is blowing 100 mi/hr, pushing the aircraft in the direction 30° north of east. what is the resultant... more
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20d

Solve equation, giving exact solutions which lie in [0, 2pi): tan2(x)=1-sec(x)
I got stuck in the middle of the problem. Here's how far I gottan2(x)=1-sec(x)tan2(x)+sec(x)-1=0sin2(x)/cos2(x)+1/cos(x)-1=0
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20d

Find the horizontal shift
what is the horizontal shift of this function? y=8.1(2+3cos(x-pi/2))
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21d

Problem Solving, Parallelograms
Two Adjacent Sides Of A Parallelogram Are 29' And 37", Respectively. The Angle Between These Two Sides Is 65° Find The Length Of C.
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21d

Area of Triangles Problem Solving

a painter needs to find the area of the gable end of a house. what is the area of the gable if it is a triangle with two sides of 42 ft that meet at a 105° angle? round to the nearest hundredth.
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25d

Half-Angle Formulas
Simplify for x in the third quadrant:(sin x/2-cos x/2)^2
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25d

Double Angle Formulas
Simplify:tan x sin 2x
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27d

Double-Angle Formulas
Find sin 2θ if θ is in the first quadrant and tan θ=40/9.
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11/08/19

Sum and Difference Formulas
Express the following as a function of a single angle.tan145°+tan85°/1-tan145°tan85°
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11/08/19

Sum & Difference Formulas
Express the following as a function of a single angle.tan(-34°)+tan(-110°)/1-tan(-34°)tan(-110°)
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11/06/19

Sum & Difference Formulas
Find sin105° without using a calculator.
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11/05/19

Sum and Difference Formulas
Express cos(60°)cos(-20°)-sin(60°)sin(-20°) as a function of a single angle.
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11/04/19

Given that sin(a) = 3/5 and cos(b) = − 1/3 , with a and b both in the interval π/2 , π , find the exact values of sin(a + b) and cos(a − b).
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11/01/19

Trig Question Thank You In Advance
Solve for x by factoring where pi/2 ≤ x ≤ pi.3 csc x cot^2 x = csc x
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11/01/19

Trig Question, Solve For X

Solve for x where pi/2 ≤ x ≤ 3pi/2.- 4cos^2 x + 4sqrt(2) sin x + 6 = 0.When I did the problem I got 5pi/6, but I am not sure if that is correct.
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10/29/19

Trig Question, Please Help If You Know How To Do The Problem
I keep having to ask for help with this lesson, so if you have time time and are able to help me, step-by-step would be a huge help. Find x where pi ≤ x ≤ 2pi. 4 cos^2 x - 2 = sec^2 x - tan^2 x
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10/28/19

Trig Question, Help Needed Fast
find x where 0 ≤ x ≤ 2pi. cos x - tan^2 x=1. give your answers as a fraction ordered from least to greatest.
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