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December 22, 2014

Homework Help: Math: Trigonometry

Recent Homework Questions About Trigonometry

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trig confused.. pls help
A group of mountain climbers are using trigonometry to find the height of a mountain located in the Rockies. From point A, which is due west of the mountain, the angle of elevation to the top is 56 degrees. From point B, which is due east of the mountain, the angle of ...
Tuesday, May 3, 2011 at 9:55pm

trig
solve for exact value for x between 0 and 2 pie 3sin2(x)-cos2=2?
Tuesday, May 3, 2011 at 12:59pm

trig pls.. help me
A rocket carrying a weather satellite is launched. As it moves through space, the rocket is tracked by two tracking stations located 24 km. apart, beneath the rocket. The 2 tracking stations both lie west of the launching pad. at a specific moment, the rocket's angle of ...
Monday, May 2, 2011 at 4:03pm

trig
how do you solve 2nd cos 6/11 (my calculator doesn't have 2nd function0
Sunday, May 1, 2011 at 8:31pm

trig
the terminal side of angle theta in standard position lies on the line that travels through point (9,1), find sin of theta, cos of theta, tan of theta. (give exact values)
Sunday, May 1, 2011 at 1:43pm

Trig
Water is being pumped at a 3 cubic feet/minute into a cylindrical storage tank with a circular base of a radius 4 feet. Find the depth of the water (d) as a fucntion of time (t)
Friday, April 29, 2011 at 11:36am

Trig
A silo is 40 feet high and 16 feet across. find the angle of depression from the top edge to floor. How do you solve this?
Thursday, April 28, 2011 at 10:26pm

Trig
A silo is 40 feet high and 16 feet across. find the angle of depression from the top edge to floor. How do you solve this?
Thursday, April 28, 2011 at 10:11pm

Trig
What is the period of f(x)= 1/2 tan(3x+pi/2) and -2/3 cos(x/3-1/2)?
Thursday, April 28, 2011 at 10:01pm

Trig
What is the vertical asymptote of y=tan(x-pi/3)?
Thursday, April 28, 2011 at 9:33pm

Trig
If two runners determine the angle of elevation of a hot air ballon is 24.5 degrees and 22 degrees. The hot air ballon is 1500 feet directily above a point on the highway east of both runners. How far apart are they? A trigonometry question.
Thursday, April 28, 2011 at 8:39pm

trig
Verify the equation is an identitiy: cot(x)tan(x+pi) - sin(pi-x)cos((pi/2)-x) = cos^2x Thanks
Wednesday, April 27, 2011 at 8:28pm

trig
A coil of wire rotating in a magnetic field induces a coltage E=20sin((PIa/4) - (PI/2)). Use an identity to express this in terms of cos(PIa/4). Types of Identities: Double Angle, Half Angle, Sum and Difference of Sine, Cosine, and Tangent, Pythagorean, Reciprocal, Quotient. ...
Wednesday, April 27, 2011 at 8:23pm

identities trig?
find all solutions to the equation in the interval [0,2pie] cos2x=cosx
Tuesday, April 26, 2011 at 9:47pm

ah trig help
use an apropriate sum or difference indentity to prove the double-angle identity cos2u=1-2sin2u
Tuesday, April 26, 2011 at 9:39pm

trig
use a sum or difference identity to find an exact value cos pie/12
Tuesday, April 26, 2011 at 9:35pm

trig identies 5.3 &5.4
use a sum or difference identity to find an exact value pie/12
Tuesday, April 26, 2011 at 9:31pm

trig identities
cos94 degrees cos18 degrees+ sin94 degrees sin18 degrees. write the expression as the sine, cosine, or tangent of an angle.
Tuesday, April 26, 2011 at 9:22pm

math
4cot^2x-4/tanx+cosxsecx factorin algenraic single trig function
Tuesday, April 26, 2011 at 5:34pm

trig
how do i solve this completing the square problem: 3x^2+12x+10=0
Tuesday, April 26, 2011 at 2:54pm

trig
The lengths of 2 adjacent sides of a parallelogram are 42 cm and 36cm. an angle of the parallelogram is 4o degrees. Find the measure of the longest diagonal to the nearest tenth of a centimeter.
Tuesday, April 26, 2011 at 2:07pm

trig.
Find the degree measures of 2 angles, one positive and one negative that are co-terminal with 135.
Tuesday, April 26, 2011 at 2:05pm

trig
Each child in a family of 3 children is going to get a pet. One wants a dog or cat, another wants a bird or rabbit, and the third wants a frog or snake. List a sample space or draw a tree diagram and determine the number of possible outcomes.
Tuesday, April 26, 2011 at 2:04pm

trig
finding the period of a graph given a equation y=-5sin1/3(x-pi/2)
Tuesday, April 26, 2011 at 1:49pm

Trig
a clock has a diameter of 1 foot what is the angular size if viewed from a distance of 27 feet
Tuesday, April 26, 2011 at 1:04pm

algebra 2 and trig (math)
Find the value of x in the interval 0 is less than or equal to x and 360 is greater than or equal to x which satisfies the equation cos x - 2 cos x sin x.
Tuesday, April 26, 2011 at 12:09am

algebra 2 and trig (math)
Find the positive acute angle that satisfies the equation tan(squared) minus tan = 0.
Monday, April 25, 2011 at 11:49pm

trig
What is the shortest possible length of a triangle side facing an angle of 20 degrees, if one of the other sides is 5? (answer should be a decimal number, correct within 0.001)
Monday, April 25, 2011 at 7:07pm

trig
given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches
Monday, April 25, 2011 at 3:27pm

trig
what is angular velocity if 57 revolutions are completed in 8 minutes?
Monday, April 25, 2011 at 3:26pm

trig
find, to the nearest tenth of a meter, the length of the arc intercepted by a central angle of 160 degrees if a radius of the circle in 8 meters long
Sunday, April 24, 2011 at 10:13pm

trig
find, to the nearest tenth of an inch, the length of the arc intercepted by a central angle of (4pi)/3 radians if a radius of the circle is 22 inches long
Sunday, April 24, 2011 at 10:11pm

trig
I need help with this problem: If San Francisco Giants homerun king, Barry Bonds, hit a baseball due west with a speed of 50.0 m/s, and the ball encountered a wind that blew it north at 5.00 m/s, what was the resultant velocity of the baseball?
Saturday, April 23, 2011 at 6:03pm

trig
an angle 30 with the distace of 24km and an angle of elevation of 45 with the distance of 15km.
Saturday, April 23, 2011 at 6:48am

Math calculus-Trig
Find the area bounded by the curve and the lines y = -x^2 - 4x; y = 1; x = -3; x = 1
Thursday, April 21, 2011 at 6:16pm

Calculus/ trig
Find the area bounded by the curve and the lines y=sinx, y= 1/2, x=5pi/6 and x=pi/6
Thursday, April 21, 2011 at 5:17pm

trig
write each equation in its equivalent logarithmic form 8 7=300
Wednesday, April 20, 2011 at 8:15am

trig
sin^-1(sin5pi/6)
Tuesday, April 19, 2011 at 8:18pm

trigonometry
simplify sin7x-sin3x as a product of trig functions.
Tuesday, April 19, 2011 at 8:16pm

trig
convert the point with polar coordinates (2,7pi/6) into rectangular coordinates.
Tuesday, April 19, 2011 at 8:13pm

trig
The parametric equations for a curve in the x-y plane are x=2+t^2 and y=4-3t. Determine the points where the curve intersects the x-axis.
Tuesday, April 19, 2011 at 8:12pm

trig
simplify the expression: sin(theta+pi/4) + sin(theta-pi/4)
Tuesday, April 19, 2011 at 8:08pm

trig
angle x lies in quadrant 3 and cos(x)=-.6. Find cos(3pi/2-x)
Tuesday, April 19, 2011 at 1:33pm

trig
simplify the expression sin(theta+pi/4) + sin(theta-pi/4)
Monday, April 18, 2011 at 10:15pm

Algebra2/ Trig
During a baseball season, a company pledges a donation to a charity of $5000 plus $100 for every home run hit by the local team. Does it make more sense to represent this situation using a sequence or a series? Explain your reasoning.
Monday, April 18, 2011 at 2:20pm

trig
what is the cube root of (-64i)?
Sunday, April 17, 2011 at 5:54pm

trig
What is the trigonometric notation for 3-3(sqrt3i)?
Sunday, April 17, 2011 at 1:14pm

trig
Multiply: 5(cos Pi/3 + i sin Pi/3)times 2 (cos Pi/4 + i sin Pi/4) and leave the answer in trigonometric notation.
Sunday, April 17, 2011 at 12:56pm

Pre-Calc/Trig
1. Find all possible values of k so that (3,5), (5,-1), and (k,8) are the vertices of a right triangle 2. Find all points with -x+2y=0 so that (x,y) is 5 units from (-1,4) 3. (f(x+h)-f(x))/h for f(x)= -5/(x+2) 4. The frequency of the sound produced by a string is directly ...
Sunday, April 17, 2011 at 1:54am

trig
Peter (P) and Jamie(J) have computer factories that are 132 miles apart. They both ship their completed parts to Diane (D). Diane is 72 miles from Peter and 84 miles from Jamie. Using the points D,J,and P to form a triangle, find m<PDJ to the nearest tenth of a degree.
Saturday, April 16, 2011 at 5:39pm

trig
Graph this trigonometric function. y=-4cos(x/2+3.14)+1
Friday, April 15, 2011 at 8:47pm

trig
A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket
Thursday, April 14, 2011 at 6:13pm

trig
A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket
Thursday, April 14, 2011 at 6:08pm

trig
Show that (90-45)=cos90 cos 45
Thursday, April 14, 2011 at 2:04pm

alagbra 2 trig
solve the equation 2ln(x+5)-1=7
Wednesday, April 13, 2011 at 5:17pm

trig
2cos(theda)-"2=0
Sunday, April 10, 2011 at 10:37pm

trig
3sin(2x)-2cos(x)=0
Sunday, April 10, 2011 at 10:46am

trig
express in terms of ¦Ð, the interval for which 4cosx ¡Ý 2
Saturday, April 9, 2011 at 7:57pm

trig
4cos(2x)+2cos(x)+3=0
Saturday, April 9, 2011 at 11:04am

trig
find the period and amplitude of each sine function.then sketch each function from 0 to 2pi: 1)y=-3.5 sin 5theta
Thursday, April 7, 2011 at 8:22pm

trig
If an equilateral triangle has a side of 10 ft what is its altitude to two significant digits
Wednesday, April 6, 2011 at 9:35pm

trig
Match each ratio in the first row with an equivalent ratio from the second row if angle A plus angle B = 90 degrees. SinA CosA TanA CscA SecA CotA SinB CosB TanB CscB SecB CotB Does this question even make sense?
Wednesday, April 6, 2011 at 6:49pm

Trig
A 60 ft. antenna stands on top of a building, From a point on the ground, the angles of elevation to the top and bottom of the antenna measure 58 and 44 respectively. How tall is the building
Tuesday, April 5, 2011 at 6:58pm

Pre-calc/Trig
If cot(a)=3 and sin(b)= (15/17) where a being alpha lies in quadrant 3 and b being beta lies in quadrant 2, what is the exact value of sin(2a)
Tuesday, April 5, 2011 at 4:53pm

trig
2 cosine squared pi over 8 minus 1 find exact value of given expression
Monday, April 4, 2011 at 8:31pm

trig maths
rewrite 7 sin2A – 5 sin A + cos2A = o to solve for A
Monday, April 4, 2011 at 7:51am

trig
If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.
Sunday, April 3, 2011 at 8:13pm

trig
If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.
Sunday, April 3, 2011 at 8:12pm

Trig
What is the exact value of sin^-1(sin(8pi/15)?
Wednesday, March 30, 2011 at 9:07pm

math please help
use an inverse trig function to write theta as a function of x (There is a right triangle drawn. The hypotenuse is 2. Theta is the angle between the base and the hypotenuse. The base/adjacent side of theta is labeled(x + 1) The side opposite theta does not have a value.) Use ...
Wednesday, March 30, 2011 at 8:25pm

trig
secx=5 use a graph to solve the following equation in the interval x is greater than -pie but less than pie
Wednesday, March 30, 2011 at 7:06pm

trig
I have to retype this. For which angles theta, with 0 degrees less than/equal to theta less than/equal to 180 degrees, is sin 3theta = (equal) -1 (negative 1)? a) 30 and 150 degrees b) 60 and 120 degrees c) 90 degrees d) 0 and 120 degrees How do I set this up?
Wednesday, March 30, 2011 at 6:16pm

trig
use an inverse trig function to write è as a function of x (There is a right triangle. The hypotenuse is 2. è is the angle between the base and the hypotenuse. The base/adjacent side of è is (x + 1) The side opposite è does not have a value.) a) &...
Wednesday, March 30, 2011 at 6:12pm

Trig
A Person is riding a bike with wheels that have a 14 inch radius at 15 mph. The bicyclist rides over some gum which sticks in the tire, assume this is t=0. 1. Find a function that gives the height in inches above the ground of the gum, with input is second
Wednesday, March 30, 2011 at 6:07pm

trig
For which angles ¦È, with 0¡ã ¡Ü ¦È ¡Ü 180¡ã, is sin 3¦È = -1? How do I set this up?
Wednesday, March 30, 2011 at 5:53pm

trig
solve csc^2x=3 for all possible solutions
Tuesday, March 29, 2011 at 11:21pm

trig
Use the appropriate cofunction to find an equivalent expression for cos 54° cot 24 sec 32 sin 36 csc 44
Tuesday, March 29, 2011 at 9:23pm

trig
A passenger airplane flying at an altitude of 1.8 km starts its final airport approach by descending at an angle of depression of 6°. How far along the ground is the airplane from its landing point
Tuesday, March 29, 2011 at 9:20pm

trig
Given a right triangle with legs 8 and 5, find the measure of the two acute angles. (Round to the nearest hundredth
Tuesday, March 29, 2011 at 9:19pm

Pre Calc Trig
Verify the following: tan( a + p/2) = -cot a a= alpha and p= pie since I do not have that button.
Tuesday, March 29, 2011 at 1:16pm

trig
y=1/4 cos (2/3 x +3 pi )
Monday, March 28, 2011 at 9:02pm

trig
In a circle of radius 12 inches, a sector is formed by a central angle of pie/4 radians. Find the area of teh sector to the nearest hundredth of a square inch.
Monday, March 28, 2011 at 2:23pm

trig
y = 3sec3x Amplitude =_________ Period = __________ Shift along x = ____________ Shift along y = _____________ Kind of reflection = ______________
Saturday, March 26, 2011 at 9:22pm

trig
ABC is an isoscele triangle in which [AB]=[AC]=5cm and [BC]=6cm. Calculate [AM], where M is the mid-point of BC.
Saturday, March 26, 2011 at 7:22pm

Trigonometry
Having trouble with true/false questions in Trigonometry. They read as follows - True or False: For a trigonometric function, y=f(x), then x=F^-1(y). Explain your answer. True or False: For a one to one function, y=f(x), then x=f^-1(y). Explain your answer. True or False: For ...
Thursday, March 24, 2011 at 3:03pm

Trigonometry
Having trouble with true/false questions in Trigonometry. They read as follows - True or False: For a trigonometric function, y=f(x), then x=F^-1(y). Explain your answer. True or False: For a one to one function, y=f(x), then x=f^-1(y). Explain your answer. True or False: For ...
Thursday, March 24, 2011 at 2:46pm

Trig
Solve: (2/y+2)+(3/y)=(-y/y+2)
Tuesday, March 22, 2011 at 11:51pm

Trig
(2/y+2)+(3/y)=(-y/y+2)
Tuesday, March 22, 2011 at 10:15pm

trig
Evaluate each value as a trigonometric function of an angle in Quadrant 1. #1 cos (27pi/8)
Tuesday, March 22, 2011 at 7:30pm

trig
Prove that sin squared 20 degrees+sin squared 40 degrees+ sin squared 80 degrees is equal to 3/2
Tuesday, March 22, 2011 at 3:18pm

trig
Rewrite as a function of a quadrant 1 angle. cos152
Tuesday, March 22, 2011 at 9:42am

trig, Phoenix College
Where did the number 0.5736 come from or originated from? Will the horizon be closer or farther away when your eyes are closer to the surface? Will the horizon be closer or farther away when your eyes are farther from the surface?
Monday, March 21, 2011 at 10:59pm

math - trig
Given the coordinates of the terminal side of an angle in standard position, find the value of sine, cosine, and tangent: (-4,0)
Monday, March 21, 2011 at 10:10pm

verfying trig identity
1+Cosx 1-Cosx _______ - _______ = 4CotxCscx 1-cosx 1+Cosx
Monday, March 21, 2011 at 7:01pm

trig
determine wheather each of the following is an identity or not prove it 1. cos^2a+sec^2a=2+sina 2. cot^2a+cosa=sin^2a
Sunday, March 20, 2011 at 11:46am

trig
if sina,cosa,tana are in geometric progression then prove that cot^6a-cot^2a=1
Sunday, March 20, 2011 at 11:40am

trig
For each expression in column I, choose the expression from column II to complete an identity: Column I Column II 1. -tanxcosx A. sin^2x/cos^2x 2. sec^2x-1 B. 1/sec^2x 3. sec x/cscx C. sin(-x) 4. 1+sin^2x D.csc^2x-cot^2x+sin^2x 5. cos^2 x E. tanx I figured #1 is C, #2 is A, ...
Saturday, March 19, 2011 at 9:52pm

trig
draw the graph of 4sin(x+30) and 2+tanx for values of x from 0 degree to 360degree and obtain the solution within the range of the equation 4sin(x+30)-tan x=2
Saturday, March 19, 2011 at 5:38pm

trig
{Given: cos(A)=\frac: sqrt{203}/{18} {Find: tan(A) Find the positive value of the above in simplest radical form.
Saturday, March 19, 2011 at 2:54pm

trig
The number of a fraction is three more than twice the denominator. The fraction simplified is equal to 9/4 Find the fraction
Wednesday, March 16, 2011 at 10:37pm

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