Sunday
February 14, 2016

Homework Help: Math: Trigonometry

Recent Homework Questions About Trigonometry

trig
sina=^10 sinb=^5 find a+b if a,b are acute angles
Friday, August 19, 2011 by parminder

trig
sina=^10 sinb=^5 find a+b if a,b are acute angles
Friday, August 19, 2011 by Anonymous

trig
how do you find all the values of theta from 0 degrees through 360 degrees for which sin theta equals 0
Thursday, August 18, 2011 by jen

trig
i can not figure out how to write the complex number in rectangular form the question is 4(cos 5Pie/6 + i sin 5 pie/6)
Wednesday, August 17, 2011 by fred

Trig
Find the polar coordinates of (8, –8) for r ≥ 0. I am getting 8 square root of 2 as the first coordinate. I am not sure if I am finding the arctan correctly.
Monday, August 15, 2011 by Dara

trig and cotagent
Evaluate cot(11pi/6) to the nearest hundredth (given in radians).
Monday, August 15, 2011 by saad

trig
Solve the equation for cos theta-tan theta=0 for greater than or egual to zero but less than 2pi. Write your answer as a multiple of pi, if possible form the following choices: pi , 5pi A. --- ---- 4___ 4 B. pi 3pi 5pi 7pi ----- '----- '-----'----- 4_____ 4_____ ...
Monday, August 15, 2011 by saad

trig
Solve the equation for cos(3theta/2).tan(3theta/2)for greater than or egual to zero but less than 2pi. Write your answer as a multiple of pi.
Monday, August 15, 2011 by saad

trig
sin2xcosx-sinx=0 interval(0,2pi)
Sunday, August 14, 2011 by Anonymous

trig
Find the smallest positive value of x(in degree) for which tan(x+100°)=tan(x+50°)*tanx*tan(​x-50°)
Saturday, August 13, 2011 by SONU

trig
A tower is supported by a guy wire from the top of the tower to the ground 16 ft from its base. The wire makes an angle of 62 with the ground. The length of the wire is a. 30.09 ft b. 18.12 ft c. 28.41 ft d. 34.08 ft
Friday, August 12, 2011 by Val

Trig/pre-calc
r=8cos(theta)+5sin(theta), convert the polar equation into a rectangular equation and then complete the square and determine the center radius...? Help?! I missed the section, and am not getting anywhere with the text...
Friday, August 12, 2011 by A

trig
Find sin(2theta) if tan of theta = 7/24, pi < theta < 3pi/2 ?
Tuesday, August 9, 2011 by Anonymous

trig
If z=1+i, then the multiplicative inverse of z esqaire is:
Monday, August 8, 2011 by Anonymous

trig
Find sec theta if theta=3/4 in Q1
Sunday, August 7, 2011 by andy

Pre-calculus
find the trig functions of angle x if the terminal side of x passes through the point (-12, 5).
Sunday, August 7, 2011 by Lala Kennedy

Precalculus
How would you solve this trig function: cos2x=sin^2-2 how do you know what trig identities to use?
Saturday, August 6, 2011 by Jess

Geometry
30-60-90 triangle has a hypoteneuse of 10 use trig to find the short side
Wednesday, August 3, 2011 by Christa

Math
What are some examples of exponential function (Using the formula: Al = A0(1/2)^t/h ), trig functions that are used to find amplitude, period, max, min etc., and combinations of transformation at home or in life in general?
Saturday, July 30, 2011 by Kate

trig
An arc subtends an angle 15 degrees at the centre of the circle. If the radius is 4 centimetres, find the area of the sector?
Friday, July 29, 2011 by Sulaksha

Trig
A car is traveling at a speed of 55 mph with a bearing of 210°. What vector represents the velocity?
Thursday, July 28, 2011 by bob

Pr-Cal/Trig
1)if the graph of f(x)=cotx is transformed by a horizontal shrink of 1/4 and a horizontal shift left pi, the result is the graph of: a) g(x)= cot[1/4(x-pi)] b) g(x)=cot[1/4(x+pi)] c) g(x)=cot[4(x-pi)] d) g(x)=cot[4(x+pi)] e) g(x)=cot[4x+pi] please include how you got the answer
Monday, July 25, 2011 by Ashley

Trig
Find [4(cos115+isin115)]^6
Monday, July 25, 2011 by Jack

pre calculus 2
use the fundamental trig. Identities to simplify tan^4x+2tan^2x+1
Sunday, July 24, 2011 by denise

math
mr. pursley, have you ever worked geo., trig. etcwith no calu.s with the heat on , when it had to be right?wheather you blew up your target or something else or the bld. collapsed or was built in the correct place? i'm not an answer grazer, but qam an answer seeker.I'm...
Friday, July 22, 2011 by mac

Trig: Conics
Sketch the graph and find following info: Vertex: Focus: Directrix: Axis of Symmetry: Ends of Latus Rectum: (x-2)^2=4(y-3) I think the vertex is (2,3) is this correct, and how do I proceed on? Thank you!
Wednesday, July 20, 2011 by EVJ

Trig
Find an equation for the hyperbola described. Foci at (-4,0) and (4,0); asymptote the line y= -x. Please explain the steps of this problem. My book does not get an example of this type of problem and I'm not having any luck working this problem.
Tuesday, July 19, 2011 by EVJ

Trig
A bridge is built in the shape of a parabolic arch. The bridge has a span of s= 160 feet and a maximum height of h= 25 feet. Choose a suitable rectangular coordinate system and find the height of the arch at distances of 10, 30, and 50 feet from the center. 10= 30= 50=
Monday, July 18, 2011 by EVJ

trig
Find the exact value of the trigonometic function at the given real number of cot(5pi/3)
Sunday, July 17, 2011 by Anonymous

Trig math
How do I solve for x? cos(4x)(2+tan^2x)=8
Thursday, July 14, 2011 by Shiv

trig
How do i solve Cos (4x)(2+tan^2X0 = 8?
Thursday, July 14, 2011 by Anonymous

trig
Given that SIN Theta = -1/sqrt(10) and theta is in quadrant 4, find sin2theta and cos2theta. I'm not sure how to properly square the -1/sqrt10 and keep an exact answer other than decimal. Otherwise, my final answer is Sin2Theta = -.7255970691 and cos2theta = 1.632455533
Wednesday, July 13, 2011 by Joe

trig
An airplane has an airspeed of 450 km/hr bearing N45E. The wind velocity is 30 km/hr in the direction N30W. What is the ground speed and what is its direction?. I have gotten this far: A= 450cos(45), 450sin(45) = (318.20, 318.20) W= 30cos(120), 30sin(120) = (-15, 25.98) A+W= ...
Wednesday, July 13, 2011 by VEJ

trig
Verify that each trigonometric equation is an identity tan^2+1/sec α =sec α
Wednesday, July 13, 2011 by maria

trig
During a 12-hour period, the tides in one area of the Bay of Fundy cause the water level to rise to 6 m above average sea level and to fall 6 m below average sea level. The depth of the water at low tide is 2 m as measured against a pier. a.) Suppose the water is at average ...
Wednesday, July 13, 2011 by Sean

trig question...
During a 12-hour period, the tides in one area of the Bay of Fundy cause the water level to rise to 6 m above average sea level and to fall 6 m below average sea level. The depth of the water at low tide is 2 m as measured against a pier. a.) Suppose the water is at average ...
Tuesday, July 12, 2011 by Sean

Math-trig.
1)sinx+cosx=1 2)sinx+cosx=1+sin2x
Friday, July 8, 2011 by lisa

trig
find cos (x/2) when sint =12/13
Thursday, July 7, 2011 by Raquel

trig
1=2pi times the square root of (L/9.8)
Wednesday, July 6, 2011 by Mani

trig
sin^2(3 theta+5pie)+cos^2(3 theta+5pie)= ?
Wednesday, July 6, 2011 by Anonymous

trig
N 5 22x2 1 76x 1 430 Use the equation to find N for each year in the table. (b) Discuss how well this equation approximates the data. (c) Rewrite the equation with the right side completely factored. (d) Use your equation from part (c) to find N for each year in the table. Do ...
Friday, July 1, 2011 by mmmm

trig
An airplane flying at 600 miles per hour has a bearing of 152 degrees. After flying for 1.5 hours, how far north and how far east will the plane have traveled from point of departure?
Thursday, June 30, 2011 by Anonymous

trig
Evaluate the expression cos 22 degrees and sec 22 degrees
Thursday, June 30, 2011 by Dee Mitchell

trig
A 115 foot foot casts a 147 foot shadow, what is the degree of elevation to the sun
Tuesday, June 28, 2011 by mike

trig
y=7sin20degrees/5
Monday, June 27, 2011 by rita

Trig
A plane is flying at 240 mph heading North 60 degrees East. The wind is blowing at South 30 degrees East at 30 mph. What is the largest and smallest angles?
Saturday, June 25, 2011 by Anonymous

trig
sinx+sinxcot^2x=cscx prove each identity
Friday, June 24, 2011 by tom

trig
tan(theta)-1= sin^2(theta)-cos^2(theta)/ sin(theta)cos(theta)+cos^2(theta) prove each identity
Friday, June 24, 2011 by tom

Algebra/Trig
The members of a men’s club have a choice of wearing black or red vests to their club meetings. A study done over a period of many years determined that the percentage of black vests worn is 60%. If there are 10 men at a club meeting on a given night, what is the ...
Monday, June 20, 2011 by jelanietux

trig
the angle in one regular polygon is to that in another as 3:2 and the number of the sides in first is twice that in second determine the the number of sides of 2 polygons
Sunday, June 19, 2011 by seema

Trig
The graph of y = 7cosx + 24sinx would be a sinusoid if it were plotted. What would be the first positive value of x at which there is a high point?
Friday, June 17, 2011 by Randy

trig
1. if sin 2A = Psin2B, prove that tan(A+B)/tan(A-B)=P+1/P-1.
Tuesday, June 14, 2011 by seema

trig
Why are the quadrants situated and numbered the way they are.What is the purpose.
Monday, June 13, 2011 by Dave

trig
how high is a tree that casts a 30 ft shadow at the same time a 10 ft pole casts a shadow which is 10 ft long?
Sunday, June 12, 2011 by Anonymous

Trig
Find the amplitude, period, and phase shift of the following function: y=-2cos2(θ+45)
Saturday, June 11, 2011 by Tianna

Trig
URGENT, Please answer this question: give the value of: Tan(Arctan x+1/x-1+Arctan x-1/x)
Saturday, June 11, 2011 by Mike

trig
if alpha and beta are 2 different values of θ lying between 0 and 2π which satisfy the equation 6cosθ+8 sinθ=9 find the value of sin alpha + beta
Saturday, June 11, 2011 by usha

TRIG..............
Q.1 Prove the following identities:- (i) tan^3x/1+tan^2x + cot^3x/1+cot^2 = 1-2sin^x cos^x/sinx cosx (ii) (1+cotx+tanx)(sinx-cosx)/sec^3x-cosec^3x​ = sin^2xcos^2x.
Friday, June 10, 2011 by MATHS

Trig
give the value of tan(arctan x+1/x-1+arctanx-1/x)
Thursday, June 9, 2011 by Mike

aleg/trig
two forces of 14and 30 act on a body forming an obtuse angle w/ eachother. if the resultant is 60, whats the angle betweeen the 2 forces?
Thursday, June 9, 2011 by Angel

alegbra/trig
x^2+2x-15=0 solve by completing the square
Thursday, June 9, 2011 by Angel

Math - Trig
Let Vector V(t) = 2pi t î + 2pi t ĵ. Find the vector V(1/3). Where is the vector after the next 1/3s? What is the angular speed?
Thursday, June 9, 2011 by Susan

algebra/trig
1.Find the domain f(x)=ã(x^(2)-9) 2. Find all six trig functions for (-3,4)
Wednesday, June 8, 2011 by Mike

trig
I get that we have to put it into radical form, but I don't understand the process. Can someone walk me through it and explain it? arccos(-1/2)
Tuesday, June 7, 2011 by Master chief

trig
FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6) on the terminal side of the angle in standard position sin alpha cos alpha tan alpha sec alpha csc alpha cot alpha
Tuesday, June 7, 2011 by jacara

Trig
Evaluate (if possible) the sine,cosine, and tangent of the angle 10pi/3
Monday, June 6, 2011 by Master chief

Trig
Find (if possible) the trig function of the quadrant angle. sec 3pi/2
Monday, June 6, 2011 by Master chief

Trig
Find (if possible) the trig function of the quadrant angle.
Monday, June 6, 2011 by Master chief

algrebra 2 / trig
solve the triangle a=1 b=2 C=50 degrees
Monday, June 6, 2011 by rosemary flores

trig
How can I get rid of the square roots in this fraction? sqrt((2-sqrt3))/sqrt((2+sqrt3)) the answer is 2-sqrt3 but I don't know how they arrive at it.
Sunday, June 5, 2011 by lovemath

trig
please help. show step by step how to solve h(x)=2 cot(x/2) Identify period identify x-intercepts identify asymptotes
Sunday, June 5, 2011 by amanda

trig
on the same set of axes: (0 degrees is greater than or equal to x and x is less than or equal to 360 degrees) (a) sketch the graphs of y= sin degrees ,y=2sinx degrees and y=sin2x degrees
Saturday, June 4, 2011 by Ruby

trig
Given Tangent theta = -5 on 4 and cos theta >0, find sine theta and sec theta
Saturday, June 4, 2011 by Ruby

Trig
Find all solutions of the equation on the interval [0,2pi): Tan^2x=1-secx
Thursday, June 2, 2011 by Lsat

Trig
Find all solutions of equation on interval [0,2pi] 1=cot^2x + cscx
Thursday, June 2, 2011 by LSAT

trig
1-cosA+cosB-cos(A+B)/1+cosA-cosB-cos(A+B​)=tan(A/2)ct(A/2)
Thursday, June 2, 2011 by Kasun

trig
2cos^2+sin=1
Wednesday, June 1, 2011 by Anonymous

Algebra 2/ trig
sin theta= 7/25, 0< theta < pi/2 cos beta=8/17, 0, beta, pi/2 Find(theta+ beta)
Wednesday, June 1, 2011 by Stephanie

trig
find an angle between 0 and & 2 pi that is coterminal with - 11 over 24 pi
Tuesday, May 31, 2011 by Sage

Trig
How do I prove the following Identity? sec x(sec x-cos x)=tan^2x If there is a certain website or suggestion to help with these type of equations I would greatly appreciate it. I've been studying these for a while but still get pretty confused.
Tuesday, May 31, 2011 by Mel

trig
Simplify: cos x cos x ----- + ----- sec x-1 sec x+1
Tuesday, May 31, 2011 by Anonymous

trig
verifying a solution. 4cos^2 2x-2=0
Tuesday, May 31, 2011 by tomas

trig
how much force is necessary to stop a 2500 pound car from rolling down a 40degree slope
Monday, May 30, 2011 by Anonymous

trig
If cos(t)=(-7/8) where pi<t<(3pi/2), find the values of the following trig functions. cos(2t)=? sin(2t)=? cos(t/2)=? sin(t/2)=?
Monday, May 30, 2011 by Char

trig
prove as an identity 1/1+sin(x) + 1/1-sin(x)
Monday, May 30, 2011 by mel

trig
Ok, so im brand new at trigonometry. If i have a right triangle with an acute angle of 30° an opposite side of 4 and a hypotenuse of x how do ii find x
Monday, May 30, 2011 by maya

trig
y = sin (3x-2pi)
Monday, May 30, 2011 by mike

trig
sec(90degrees -theta)
Friday, May 27, 2011 by john

trig
find the exact zeros of the function in the interval [0, 2π) 2 cot squared x + 3 csc x=0
Friday, May 27, 2011 by shinel

pre cal\trig
Find the following cot(Arccsc 25/24) show your work
Thursday, May 26, 2011 by Cheryl

trig
A plane is flying 225 mph heading South 25°West. The wind is blowing South 80°East at 60 mph. What is the bearing of the plane? What is the smallest angle of the triangle? What is the largest angle of the triangle? What is the remaining angle of the triangle? What is ...
Thursday, May 26, 2011 by Anonymous

trig
if x and y are positive acute angles, tan x=1/3and tan y =1/4, find the value of sin(x-y)
Wednesday, May 25, 2011 by Anonymous

trig
A 2000 pound car is parked on a street that makes an angle of 12* with the horizontal (think it's a street on a hill). a) find the magnitude of the force required to keep the car from rolling down the hill. b) Find the force perpendicular to the street.
Wednesday, May 25, 2011 by ale

trig
An aifplane is flying on a compass heading (bearing) of 170* at 460 mph. A wind is blowing with the bearing 200* at 80mph. a) Find the component form of the velocity of the airplane. b) Find the actual ground speed and direction of the airplane.
Wednesday, May 25, 2011 by ale

trig
A plane is is flying 240 mph heading N60°E. The wind is blowing S30°E at 30 mph. What is ground speed? What is the smallest angle in the triangle? What is the biggest angle in the triangle? What is the remaining angle in the triangle? What is the bearing of the plane?
Wednesday, May 25, 2011 by Anonymous

trig
Find the solutions to the equation cos2x=sinx and 2cos^2x-3cosx-3=0
Tuesday, May 24, 2011 by Jill

Trig
How to find all solutions for 3tan^22x-1=0?
Tuesday, May 24, 2011 by Jill

Trig
find cos x/2, sin x = 1/4, 360 < x < 450, use half-angle identity
Monday, May 23, 2011 by Onedope

trig
find the least positive value of @. sec (4@+10)cos(3@+17) @=theta
Monday, May 23, 2011 by Catherine

trig
In Rights Triangle ABC with C=90 degrees if a=4 and c=2square roots of 7, find SinA
Sunday, May 22, 2011 by Tori

  1. Pages:
  2. <<Prev
  3. 12
  4. 13
  5. 14
  6. 15
  7. 16
  8. 17
  9. 18
  10. 19
  11. 20
  12. 21
  13. 22
  14. 23
  15. 24
  16. 25
  17. 26
  18. Next>>

Homework Help: Math