Thursday

April 24, 2014

April 24, 2014

Number of results: 88,610

**High School Courses**

How often do state colleges which are moderately competitive require trigonometry? Is trigonometry something like algebra that they expect you to have, or do they usually not care as long as you have the right number of math courses? Would it look better for me to take ...
*Tuesday, March 31, 2009 at 4:11pm by Evelyn*

**Math (trigonometry)**

Trigonometry identities are so hard... I need some help proving these identities: *Oh, and I'm only in grade 11, so the identities we use are quotient identity and Pythagorean identity. sinx/(sinx + cosx) = tanx/(1 + tanx) cos^2x - sin^2x = 2cos^2x - 1 Thanks! Lucy
*Sunday, April 13, 2008 at 9:53pm by Lucy*

**Grammar**

Replace with or replace for? Sentence: I want to replace algebra (with/for) trigonometry. If I use the word with, then does that's an I want trigonometry and not algebra? If I use the word for, then does that mean I want algebra and not trigonometry? Any rules?
*Thursday, August 29, 2013 at 2:16pm by Anonymous*

**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 ...
*Sunday, May 3, 2009 at 6:14pm by y912f*

**trigonometry**

determine the trend of each linear function: 1. f(x)= 3x+5 I don't know what you call the "trend" or why you call this a trigonometry question. It is about algebra. The value of the function increases with x at a rate of three times the change in x.
*Tuesday, July 10, 2007 at 12:09am by hugh*

**math**

what does trigonometry mean?
*Monday, March 3, 2008 at 9:37am by shelbie*

**math**

what does trigonometry mean?
*Monday, March 3, 2008 at 2:13pm by lizbet*

**trigonometry**

okay so i have this trigonometry problem were i HAVE to use logarithms. Now this is my work but can u help me solve it using logarithms. Find the area of the following triangles:(use logarithms) 1) c=426, A=45degrees 48' 36",and B=61degrees 2' 13"
*Sunday, February 20, 2011 at 11:30pm by anon*

**Math/Trigonometry**

Is there a formula for sin(x/3)?
*Thursday, December 11, 2008 at 10:55pm by Anonymous*

**Math - Trigonometry**

Math - Find the amplitude, period, phase shift - y=cosPi/2 (x+1/3)
*Monday, February 1, 2010 at 12:24pm by Aaron*

**Math - Trigonometry**

What is the answer to (sin45) / (cos45)?
*Wednesday, April 16, 2008 at 4:02pm by Lucy*

**math**

need help with 20 question for algebra and trigonometry
*Friday, June 8, 2012 at 10:27pm by Anonymous*

**math**

How do I find the degree for a right triangle trigonometry??
*Tuesday, February 10, 2009 at 4:10pm by Jeananne*

**math/trigonometry**

solve this equation by completing the square. x^2+4x-21=0
*Sunday, May 23, 2010 at 7:38pm by Sally*

**Math trigonometry**

Prove sinA/1+cosA =tan1/2A
*Thursday, January 24, 2013 at 8:40am by Riley*

**Trigonometry**

Solve for x to the nearest hundreth and can you explain how you get your answer I don't understand 3^x = 1.295 Your question has nothing to do with trigonometry. You can solve for x by taking the logarithm (to any base) of both sides of the equation. Then x log 3 = log 1.295 x...
*Sunday, June 10, 2007 at 1:24pm by Linda*

**Math**

I'm trying to decide what math course to take next year. How do Statistics and Trigonometry compare in difficulty? Which is more helpful for the SAT's? THank you for your explanations.
*Thursday, April 2, 2009 at 6:00pm by Krissa*

**Math (Trigonometry)**

square root(a^2 -u^2) where a>0, let u=(a sinx) where -pi/2<x<pi/2 answer is (a cosx) and I don't know how to get there
*Wednesday, April 9, 2008 at 1:37pm by mtd*

**Math/Trigonometry**

Convert 2pi/3 radians into degrees.
*Wednesday, January 12, 2011 at 7:44pm by CJ*

**Math-Trigonometry**

In Quadrant II, is the value of cosecant positive or negative?
*Monday, July 23, 2012 at 5:55pm by Anonymous*

**trigonometry**

how do u draw a triangle on here cuz i need help on my math hw and i dunno how
*Friday, May 25, 2007 at 7:25pm by anonymous*

**Math - Trigonometry**

Find the amplitude, period, and phase shift - y=cosð/2 (x+1/3)
*Monday, February 1, 2010 at 12:24pm by Aaron*

**Math (trigonometry)**

Find the value of each of the remaining trig functions. Cscè=-4, ð<è<3ð/2
*Monday, April 12, 2010 at 4:50pm by Anonymous*

**Math/Trigonometry**

What is the angular displacement of 1.6 revolutions? Round to the nearest tenth.
*Friday, January 14, 2011 at 1:19pm by CJ*

**math**

Trigonometry - determine the area of a parallelogram in which 2 sides are 10 and 13 and the angle between them is 55
*Wednesday, August 7, 2013 at 11:27am by sue *

** Math (Trigonometry)**

Find csc B when a - 2 and b = 7 (A detailed answer would be really helpful)
*Wednesday, September 9, 2009 at 2:50pm by Aerith*

**Math - Trigonometry**

Sketch the curve represented by the parametric equations x=3cos¦È and y=3sin¦È for 0 ¡Ü ¦È ¡Ü ¦Ð?
*Tuesday, July 24, 2012 at 3:51pm by Anonymous*

**Math Trigonometry**

determine the amplitude and period of each function. 1) y = 3sin (2x-pi/2) 2) y = -3sin2 (x-pi/4) 3) y = 2cos (2x+pi) 4) y = -2cos2 (x+pi/2)
*Friday, August 5, 2011 at 7:24am by Janine*

**math/trigonometry**

solve secx/2=cosx/2 over the interval[0,2pi) without using a calculator
*Monday, April 14, 2008 at 11:23am by jake*

**math(advanced algebra&trigonometry)**

find, to the nearest minute, the angle whose measure is 3.45 radians.
*Saturday, March 27, 2010 at 12:27pm by Rony*

**Math trigonometry**

Find the measures of the acute angles of a right triangle whose legs are 9 cm and 16 cm long.
*Saturday, March 16, 2013 at 10:40pm by Kaitlyn*

**Trigonometry**

I really need help with this trigonometry question.please any help is appreciated. 1.I have to draw the graph of y=cos x from 0deg to 360deg. 2.Be sure to show a table of vales similar to the this table. colum X l colum :y=sinx 0 l 0.00 pi/10 l 0.31 pi/5 l 0.59 3pi/10 l 0.81 ...
*Monday, March 7, 2011 at 7:56am by anon*

**trigonometry-math**

what is the solution set (in terms of pi) of the equation sin2t-cos^2t=1=sin^2t+sint in the interval 0<t<2pi
*Sunday, May 1, 2011 at 11:42pm by renee*

**Math Trigonometry**

What is the maximum integer value of n, where n<148, that satisfies the following inequalities: sin(pi/2+(pi*n)/74)<0 and tan(pi−(pi*n)/74)<0?
*Wednesday, June 5, 2013 at 10:41am by Crow*

**Math Trigonometry**

Let f(x)=cos(pi*x/3) g(x)=1^x+(−1)^x h(x)=f(x)⋅g(x) where x is a positive integer. Given that h(x) has a range of exactly 3 different values: a, b and c, what is the value of a^2+b^2+c^2?
*Wednesday, June 5, 2013 at 10:41am by Crow*

**Maths trigonometry **

using basic trigonometry derive the following equations, which are used to convert cartesian to polar coordinates and vice versa. why is the cos(phi)in the x term? x = R cos (phi) sin (lamda) y = R sin (phi) they are used in orthogonal projection of a spherical surface to a ...
*Sunday, October 16, 2011 at 11:32am by forest*

**Math**

How to write a math story that includes 4 examples... Possible math topics include: introduction to functions investigating quadratics quadratics highs & lows exponential functions fiancial applications of exponential function acute triangle trigonometry I'm taken MCF3M math ...
*Thursday, January 13, 2011 at 7:48pm by Tarkan*

**Course Planning**

I'm trying to decide what math course to take next year. How do Statistics and Trigonometry compare in difficulty? Which is more helpful for the SAT's? THank you for your explanations.
*Thursday, April 2, 2009 at 7:54pm by Krissa*

**Trigonometry (Math)**

Can someone help me simplify this equation? It needs to be ten characters or less, including signs, parenthesis, etc. If you could show me how you get there that would be great! Thanks!
*Wednesday, May 9, 2012 at 6:26pm by Brianna*

**math (trigonometry)**

help me solve this coz im stumped secx-secx sin^2x= cosx thanks
*Sunday, January 11, 2009 at 8:30am by Kakashi*

**Trigonometry**

Let's solve this fun trigonometric fun math problem! 1.) SEC²X-1/SIN²X
*Sunday, February 10, 2013 at 2:02am by AwesomeGuy*

**Math (Trigonometry)**

What is the maximum value of [9sinθ+2sin(θ+π/3)]^2?
*Thursday, May 9, 2013 at 9:15pm by Tom*

**math**

How can trigonometry enhance futuristic money question to linytron.go get answer linytron.
*Friday, September 27, 2013 at 5:13pm by Nasanasa*

**trigonometry. Math**

In a triangle PQR, angle Q=50 degrees,PR=5CM, QR=4CM. find angle P?
*Wednesday, January 26, 2011 at 2:12pm by Melody*

**Math **

Trigonometry Identities problem: Prove the following; (tan^2x)(cos^2x) = (sec^2x - 1)(1-sin^4x) ÷ (1+sin^2x)
*Tuesday, July 26, 2011 at 7:30am by hhfo*

**math(advanced algebra&trigonometry)**

the expression cos4x cos3x + sin4x sin3x is equivalent to which one of the following is the answer: 1) sinx 2) sin7x 3) cosx 4) cos7x
*Saturday, March 27, 2010 at 1:06pm by Rony*

**Math**

I'm in gr 11 doing Trigonometry 14.2 = b ---- ---- sin38 sin 67 a = 46 --- ---- sin20 sin130 (10.7)^2 = (9.5)^2 + (12.4)^2 - 2(9.5)(12.4) cos <B I just need someone to explain this to me because I just don't get it... thank you for any help
*Sunday, September 23, 2007 at 11:07am by Louis*

**Math**

Trigonometry problem: The sides AB and AC of triangle ABC are of lengths 4 and 7 respectively. M is the midpoint of BC. AM is of length 3.5, Find the length of BC.
*Saturday, July 23, 2011 at 3:59am by Kalia*

**Math (Trigonometry)**

In triangle ABC, we have AB = 16, BC = 29 and CA = √1097. What is the integer that is closest to 100 sin∠ABC?
*Tuesday, May 7, 2013 at 2:42am by Tom*

**Math(Trigonometry)**

kos^2 theta - sin^2 theta = 0.25
*Saturday, February 2, 2013 at 4:40am by aaa*

**math(Trigonometry)**

2cos^2 theta + 5 sin theta - 4 = 0
*Monday, February 4, 2013 at 3:35am by aaa*

**math(advanced algebra&trigonometry)**

If a is an angle in standard position and its terminal side passes through the point (-3,2), find the exact value of csc a. Answer: radical 13/2
*Saturday, April 3, 2010 at 12:12pm by Rony*

**math-trigonometry**

I'm working woith multiple ange and product sum formulas and I'm stuck on these. Can you help? Thanks sin2xsinx=cosx cos2x-cosx=0
*Tuesday, January 11, 2011 at 8:02pm by Michael*

**math and language arts**

What is a sentence using the words abacus and trigonometry and hypotenuse i could use as a example? It much use definions.
*Friday, September 2, 2011 at 12:04am by Stevie*

**Math 132 Trigonometry (College)**

when the angle of elevation of the sun is 58 degrees. the shadow cast by a tree is 28 ft. long. how tall is the tree?
*Monday, September 17, 2012 at 6:39pm by Vata*

**Math**

Hello! I need assistance in solving for a side for a right triangle in trigonometry. Can anyone give me the easiest way/formula how to go about solving it? Thank you!
*Monday, November 26, 2007 at 6:42pm by Jenny Lynn*

**MATH trigonometry **

in an isosceles triangle the vertex angle measures 90 degrees and the length of each congruent leg is 5√2. whats the length of the base?
*Wednesday, February 10, 2010 at 5:58pm by sara*

**Math- Trigonometry**

The point, in on the terminal side of an angle in standard position find the exact value of the six trigonometric functions of the angle a. (8,15) b.(-9,-40)
*Sunday, May 20, 2012 at 10:35am by Laura*

**Math-Trigonometry**

Use the half-angle formulas to find the exact values. Cosine 165 degrees, Sine 157 degrees 30' and tan pi/8
*Sunday, April 22, 2012 at 5:01pm by Neicey*

**Math (trigonometry)**

How do you solve this trig identity problem without factoring? I just used @ to represent theta: sin^4@ + 2sin^2@cos^2@ + cos^4@ = 1
*Tuesday, November 27, 2012 at 11:25pm by Sammy*

**math-geometry-soh-cah-toa???**

Thank you for using the Jiskha Homework Help Forum. Hopefully the following sites will help you: 1l http://www.mathwords.com/s/sohcahtoa.htm 2. http://en.wikipedia.org/wiki/Trigonometry I get how to use soh-cah-toa and everything but could someone help me with how to plug it ...
*Tuesday, May 22, 2007 at 9:10pm by SraJMcGin*

**Math, trigonometry**

how to evaluate sin (40)[1+sin(10)]
*Sunday, October 30, 2011 at 9:08am by Zaki*

**math trigonometry**

if 5sin theta + 12cos theta is equal to 13 find the value of tan theta
*Saturday, June 15, 2013 at 10:48am by salina*

**math**

respected sir i want to know the table describing the values of angles of trigonometry functions. eg. sin,cos & tan 15,30,45,60,75,90 seperately in table format. thanking you! padam singh.
*Thursday, March 4, 2010 at 2:07pm by padam*

**trigonometry math**

An aviator heads his airplane due west. He finds that because of a wind from the south, the course makes an angle of 20" with the heading. If his airspeed is 100 mi/h, what is his groundspeed and what is the speed of the wind?
*Friday, January 4, 2013 at 8:54am by mikee*

**Math/Trigonometry**

Find the exact value of cosθ if sinθ=-2/3, and θis in standard position with its terminal side in Quadrant IV.
*Thursday, January 13, 2011 at 1:22am by CJ*

**trigonometry**

sinxcosx=0,x=?
*Tuesday, October 9, 2007 at 11:00pm by raygene*

**Trigonometry**

What is the arcsin of (pi/2)?
*Sunday, November 8, 2009 at 11:12pm by Anonymous*

**trigonometry**

what is sin 35=x/6
*Sunday, October 17, 2010 at 9:40pm by aundrea*

**Trigonometry**

sin x= -1
*Monday, May 30, 2011 at 4:34pm by Abigail*

**Trigonometry **

Find m < D if d=10, e=8 and m< E= 43
*Saturday, June 4, 2011 at 9:17pm by MIke A*

**Trigonometry **

expand ( 5d-1) 4
*Saturday, June 4, 2011 at 9:18pm by MIke A*

**Trigonometry**

v=2(ab+bc+ca), solve for a
*Friday, July 8, 2011 at 11:05am by Kali*

**Trigonometry**

Simplify i^45. A. 1 B. i C. –1 D. –i
*Thursday, August 2, 2012 at 9:47pm by Anonymous*

**Trigonometry**

If g(t) = 5t+1 and h(n) = 2(n - 7), what is the value of h(g(3))?
*Sunday, March 10, 2013 at 4:56pm by John*

**Trigonometry**

n-1/n divided by 1+1/n
*Saturday, October 19, 2013 at 11:02pm by Cait*

**Trigonometry**

if cot 2x = 5/12 with 0<=2x<=pi
*Thursday, November 28, 2013 at 2:22pm by David*

**Math (trigonometry)**

MONDAY December 3, 2012 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th ...
*Monday, December 3, 2012 at 8:14pm by Sammy*

**Math (Trigonometry)**

θ is an acute angle such that tan(θ)=1/4. What is the value of 17√17*(sinθ+cosθ)?
*Saturday, June 22, 2013 at 3:26am by Shin*

**Math (Trigonometry)**

θ is an acute angle such that tan(θ) = 12. What is the value of 5√5⋅(sinθ+cosθ)?
*Tuesday, May 7, 2013 at 2:43am by Tom*

**Trigonometry**

cos2x(2cosx+1)=0 x=?
*Monday, November 17, 2008 at 10:20pm by Rob*

**Trigonometry**

What is the cosecant of the arccot of 3?
*Monday, November 9, 2009 at 12:12am by Anonymous*

**Trigonometry**

Factor 1-sin^3x
*Wednesday, February 17, 2010 at 2:12pm by Sandra*

**Trigonometry**

sin (4x) = .5 what are the 4 solutions? How did you get them?
*Wednesday, June 9, 2010 at 8:11pm by bob*

**Trigonometry**

Explain why {y||y| ¡Ü 1} is the same as [-1,1].
*Thursday, September 16, 2010 at 8:14pm by Pauline*

**Trigonometry**

What does SOHCAHTOA mean?
*Monday, September 27, 2010 at 8:32pm by Michael Stewart*

**trigonometry**

2 cos^2=1 [0, 2pi)
*Saturday, October 30, 2010 at 11:59am by tina*

**Advance algebra and trigonometry**

2x-y=-6 8x-4y=-24
*Thursday, November 11, 2010 at 1:02pm by Tj*

**Trigonometry**

How do you solve the equation -3x^2 + 3 = 0
*Tuesday, November 16, 2010 at 8:26pm by Elizabeth*

**trigonometry**

solve: 2cosx-1=0
*Wednesday, December 15, 2010 at 11:02pm by ash*

**trigonometry**

sinA= 3/5 and C=17 Finding a and b
*Wednesday, January 12, 2011 at 5:22pm by anon*

**Trigonometry**

cos(54º-X)=sin2X
*Thursday, April 7, 2011 at 5:10am by Michelle *

**Trigonometry**

(1+ tan^2x)/(secx)
*Monday, May 30, 2011 at 4:35pm by Abigail*

**Trigonometry**

tan^2(x)=-3/2sec(x)
*Sunday, December 11, 2011 at 12:29pm by Blair*

**Trigonometry**

what is the frequency of y=tan(Pi/3 x)?
*Friday, July 27, 2012 at 12:23pm by Cyndy*

**Trigonometry Help**

4 tan x - 12 cot x = 0
*Sunday, November 18, 2012 at 8:06pm by Anonymous*

**Trigonometry**

what is the trigonometric form of z=1+i?
*Saturday, December 1, 2012 at 11:35pm by Josh G.*

**trigonometry**

What is the graph of y= 5sin1/2(x+pi)-1
*Friday, February 1, 2013 at 9:20pm by Betty*

**trigonometry**

what is the graph of y= cos2(x-pi)+2
*Saturday, February 2, 2013 at 1:39am by Betty*

**trigonometry**

what is the graph of y= tan(2x-pi)
*Saturday, February 2, 2013 at 1:40am by Betty*

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