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April 24, 2014

Search: math (trigonometry)

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=cos/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. Csc=-4, <<3/2
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 and y=3sin for 0 ?
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.) SECX-1/SINX
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| 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(54-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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