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Post a New Question | Current Questions | Live Experts
Homework Help: Math: Trigonometry
Recent Homework Questions About Trigonometry
Post a New Question | Current Questions
| Math |
| Use the first five terms of the trigonometric series to find the value of sin pi/12 to four decimal places. a. 0.2618 b. 0.2588 c. 0.7071 d. 0.2648 I got B, is this right? |
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| Physiology |
| the mechanisms responsible for triggering cardiac hypertrophy are still a mystery. Hypothesize about possible signals and the steps that might be involved to cause postprandial cardiac hypertrophy in pythons. |
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| trigonometry |
| what direction of rotation generates and angle with a measure of -90 degrees? of 120 degrees? what portion of a complete rotation is -90 degrees? 120 degrees? |
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| trig |
| I need to find all solutions of the given equations for the indicated interval. Round solutions to three decimal places if necessary. 1.) 3sin(x)+1=0, x within [0,2pi) 2.) 2sin(sq'd)(x)+cos(x)-1=0, x within R 3.) 4sin(sq'd)(x)-4sin(x)-1=0, x within R 4.) sin(x)+1=cos(x), x wit... |
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| University math grade 11 Trig |
| A very tall light standard is swaying in an east-west direction in a strong wind. An observer notes that the time difference between the vertical position and the furthest point of sway was 2 seconds. The pole is 40 metres tall. At the furthest point of sway, the top of the po... |
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| trigo help! |
| 1. differentiate cos(3/x) 2. differentiate sin(4/x) 3. differentiate 3/{sin(3x+pi)} 4. differentiate pxsin(q/x)where p and q are constants. 5. differentiate xsin(a/x) where a is constant 6. differentiate sec^3(3x^2+1) |
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| Math |
| Trig Identity Prove: cos(x+y)cos(x-y)=cos^2(x)+cos^2(y)-1 |
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| Math |
| Required to Prove the following trig identity: (cos2x)^2 + (sin2x)^2 = 1 |
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| trig |
| Is the answer to this problem correct? I'm not sure and I want to make sure I do well on the test. Evaluate the following logarithms given log 4/log a = .321 The answer my teacher gave me was 0.963. What is the reasoning behind the answer? |
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| trig |
| It's in sigma notation, so I'm not sure how to type it. I'll just use E lol. Find each sum. 6 E (n+1)/(n+2) n=1 Is this a geometric or arithmetic series? That is pretty much all I really need to know. I appreciate all the help you guys give. |
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| trigonometry |
| Find the number of cans stacked in a display if there are 30 rows of cans with six on the top row, ten on the second row, 14 on the third row and so on. I know it's the sum of an arithmetic sequence, but I'm not sure exactly what to do. |
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| trig |
| Solve for X. Leave answers in logarithmic forms. 3^(2-x) = 2^x Thanks. |
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| trig |
| The expression 4 sin x cos x is equivalent to which of the following? (Note: sin (x+y) = sin x cos y + cos x sin y) F. 2 sin 2x G. 2 cos 2x H. 2 sin 4x J. 8 sin 2x K. 8 cos 2x Can someone please explain how to do this problem to me? |
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| trig |
| I have no idea how to solve this problem. <A is in standard position on a unit circle. Point P (-1/2, -√3/2) is the point of intersection of its terminal side with the unit circle. Find the measure of <A in radians. |
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| math -trig |
| a concrete border is to be built around a traingular flower garden that has sides of 10m , 7m and 8m. the border is to be staight walking path 1m wide on all sides of the garden. before the concrete can be poured, wooden forms need to be placed on the inside perimeter and on t... |
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| math-trig |
| a concrete border is to be built around a traingular flower garden that has sides of 10m , 7m and 8m. the border is to be staight walking path 1m wide on all sides of the garden. before the concrete can be poured, wooden forms need to be placed on the inside perimeter and on t... |
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| trigo |
| calculate the amount of each annuity of the last deposit.A deposit of $450 at the end of each month period of 5 years at 6.5% compounded semi annually.If you dont have my email how i am going to recerive the answer? |
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| trigo |
| calculate the amount of each annuity of the last deposit.A deposit of $450 at the end of each month period of 5 years at 6.5% compounded semi annually. |
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| trig |
| Find arcsin [cos (Pi/2)] The answer is 0. How do you solve this problem? Thanks. |
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| Alg2/Trig |
| Find the exact value of the trigonometric function given that sin u = 5/13 and cos v = -3/5. (Both u and v are in Quadrant II.) Find csc(u-v). First of all, I drew the triangles of u and v. Also, I know the formula of sin(u-v) is sin u * cos v - cos u * sin v. However, I am co... |
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| trigonometry |
| The problem is: Solve each of the following equations over the interval [0,2Pi). 2sin^2 x - 1 = 0 The answers are: Pi/4, 3Pi/4, 5Pi/4, 7Pi/4 I know how to get the first two answers, but I'm not sure how you get the last two answers, since sin would be negative in quadrants 3 a... |
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| College Preparation |
| I'm trying to major in history or journalism. Should I take trigonometry, or do you think that's not needed? I know it varies from school to school, but overall, do you think I'll be fine without trig? |
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| trig |
| sorry the first one I put in had a typo cosx/1-tanx + sinx/1-cotx = sinx +cosx |
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| trig |
| cosx/1-tanx + sinx/1-cotx = sinx =cosx |
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| US History |
| What events triggered the Civil War and what effects did it have on the nation? I need three. So far I have slavery and secession. Thank you! |
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| world history |
| Heyy I have my GCSE History exam (Edexcel) coming up on Wednesday, and as I'm not very good with the Paper 1 (essay based questions), I was wondering if anyone would be able to go through this and tell me where to improve?? In particular, any general comments or tips in relati... |
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| Trig |
| The angle 2x lies in the fourth quadrant such that cos2x=8/17. 1.Which quadrant contains angle x? 2. Determine an exact value for cosx 3. What is the measure of x in radians? ---------------- I know that quadrant 4 has 2x in it, so quadrant _____ has to have x ? for part 2, th... |
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| Trig |
| The angle 2x lies in the fourth quadrant such that cos2x=8/17. 1.Which quadrant contains angle x? 2. What is the measure of x, in radians? ---------------- I know that angle 2x is in quadrant 4, but quadrant x...? I am not sure where it is and how to get the measure of it in r... |
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| trig |
| I need to know how to graph y = sin 2(x - Pi/3) I need to have: Amplitude Period Phase Shift 5 critical points Help would be appreciated. Thanks. |
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| Grade 11 Algebra 2/Trig |
| Given : f(x) = x^2 and g(x) = 2^x The inverse of g is a function, but the inverse of f is not a function. Explain why the statement is true. |
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| trigonometry |
| Evaluate the expression. arcsin (-1/2) Is there a rule I am missing? How do I know which quadrant the triangle belongs in? That is the only thing that is stopping me. Much help appreciated. |
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| trig |
| I do not understand for my life how to solve this problem. Evaluate the expression without the aid of a calculator. arccos[(-3^1/2)/2) I'm not sure how my teacher did it. I know she said to find which quadrant that cos can be in and graph the triangle to find the angle. |
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| senior year |
| does anyone know what consumer math is? i'm trying to take it for my senior year, but i'm not sure what it's about. or if i can take it after trig and algebra. |
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| 12th grade- Trigonometry |
| Find the exact value of each expression Cos^-1(0) Tan^-1 sqrt(3)/3 Sin^-1(1) Since the expressions are capitalized, I'm not sure if I have to do anything different. Any help is appreciated. |
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| MATH TRIG |
| FROM A DISTANCE OF 80 M. THE ANGLE OF ELEVATION OF THE TOP OF A FLAGPOLE IS 18 DEGREES. dETERMINE THE HEIGHT OF THE FLAGPOLE.(NEAREST TETH OF A M. mY CONFUSION IS ANGLE OF DEPRESSION AND ANGLE OF ELEVATION. mY TECHER CALLS FROM TOP ELEVATION WHILE i INSIST ELEVATION IS FROM TH... |
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| Physics |
| so I'm doing the back of this worksheet and on the bottom there's a list of a whole bunch of formulas... I'm asked to find the minimum coefficent of friction if the road was flat of a car which I still don't know how to do and posted a question about it below but anyways... so... |
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| Trig |
| give the missing value: sin 54.2=? -->i think its 0.811 but i might be wrong. sec 23.2=? --->i think its 1.08, but again, i could be wrong and i have NO idea how to do these: cot ? =-0.500 sec ?= 1.000 csc ?= 0.732 |
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| Calculus |
| I have two questions, because I'm preparing for a math test on monday. 1. Use the fundamental theorem of calculus to find the derivative: (d/dt) the integral over [0, cos t] of (3/5-(u^2))du I have a feeling I will be able to find the derivative easily, I'm just having trouble... |
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| trig |
| The terminal side of an angle includes the point (5,-12). Give the sine, cosine, and tangent of the angle exactly. I know how to plot it and everything, but I'm not sure where to put theta so I know which angle to use for finding sine, cosine, and tangent. I think it has somet... |
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| spanish |
| please check/revise this one last time: Por la mañana yo me despierto a las ocho y media. Primero me cepillo los dientes y el pelo. Luego como el desayuno. Por las nueve, empiezo mi tarea. Primero trabajo en trígonometria. Luego preparo el inglés, la historia americana, la fís... |
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| spanish |
| please revise my spanish part, make corrections, and add accent where needed: In the morning I wake up at 8:30 a.m. The first thing I do is brush my teeth and comb my hair. Then i eat breakfast. By 9:00 a.m., I start my schooling (home). The first thing I work on is trigonomet... |
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| trig |
| The average depth of water at the end of a dock is 6 ft. This varies 2 ft in both directions with the ride. Suppose there is a high tide at 4 am. If the tide goes from low to high every 6 hours, write a cosine function describing the depth of the water as a function of time wi... |
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| trig |
| A city averages 14 hours of daylight in June, 10 in December, 12 in both March and September. Assume that the number of hours of daylight varies sinusoidally over a period of one year. Write an expression for n, the number of hours of daylight, as a cosine function of t. Let t... |
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| trig |
| Scientists believe that the average temperature at various places on Earth vary from cooler to warmer over thousands of years of gradual climate change. Suppose that at one place, the highest avg temp is 80 and the lowest is 60. Also suppose that the time it takes to go from t... |
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| math |
| how would you solve for x: (3)^.5sin(2x)-2cos(2x)+2sin^2(x)=1 using trig identites. please help |
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| math |
| how would you find the angle to (3)^.5sin(2x)-2cos(2x)+2sin^2(x)=1 I know that you have to use the trig identities but then when i substitue the sin and cos(2x) in i don't know what to do. please help |
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| spanish |
| is this translated right? In the morning I wake up at 8:30 a.m. The first thing I do is brush my teeth and comb my hair. Then I eat breakfast. By 9:00 a.m., I start my schooling (home). The first thing I work on is trigonometry. Then I do English, Trigonometry, American Histor... |
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| spanish |
| here's what i got so far, for my spanish daily routine assigment: In the morning I wake up at 8:30 a.m. The first thing I do is brush my teeth and comb my hair. Then I go down and eat breakfast. By 9:00 a.m., I start my schooling (home). The first thing I work on is Trigonomet... |
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| spanish |
| this is my Spanish assignment: Write a letter to a friend in Spanish in which you describe your daily routine from morning to night. Include the following information in your description: 1. what you do in the morning before school and when you do each activity 2. how you feel... |
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| trig |
| prove the following trig identity: a) sin(pi/6 + x) + sin (pi/3 + x) + sin (pi/2 + x) = ((sqrt3) +1)/2 (sinx +(sqrt3)cosx) b) sin(pi/4 + x) + sin(pi/4 - 4)= (sqrt2)cosx |
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| Trigonometry |
| How would you solve this using logarithims?? 7^(x)=6^(x+7) |
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| trig |
| 2cosx+sinx+1=0 how do I get everything in one function? |
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| trig |
| I am very confused about the concepts of.. sin è = sin(180 - è) sin (180 + è)= -sinè tan (180 - è) = -tanè and how the final answer was found in this problem... Find cos 510: cos510=cos(540-30) =-cos30 =-s.r3/2 i dont understand how we went from -cos 30 to -s.r3/2 ? |
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| Trigonometry |
| Smalltown, latitude 53.6 degrees N, lies directly north of Bigville, latitude 38.6 degrees N. Give the distance between the two cities. (Hint: The earth's radius is about 3,960 miles.) This is a question similar to what will be on my test tomorrow. I'd really appreciate the he... |
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| chemistry |
| why is COCl2 polar a. different electronegativities b. nonsymmetric c. tetrahedral d. symmetric e. trigonal planar more than one can be chosen also wht is HCN polar a. nonsymmetric b. different electronegativities c. trigonal planar d. linear e. bent f. symmetric thanks i alre... |
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| trig |
| Give the measure of the acute angle with each given value to the nearest tenth of a degree. cos A = 0.1 (84.3 degrees) sec D = 1.8 (65.3 degrees) That is all it gives :( How would I go about solving this? |
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| Alg 2/trig |
| I have the answers to the question, but I have no on how to get the answers. State the quadrant in which theta lies. Cos X < 0 and Sin X > 0 (Answer is 2) Tan X < 0 and Sin X < 0 (Answer is 4) Cos X > 0 and Tan X > 0 (Answer is 1) Cot X < 0 and Sec X < ... |
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Homework Help: Math
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