trigonometry

2,054 results, page 7

Trigonometry

If sin A=3/5 and cosB = 24/25 and angle A and angle B are both in quandrant 1. What is sthe exact value of cos (A-B)?

Math

Trigonometry Identities problem: Prove the following; (tan^2x)(cos^2x) = (sec^2x - 1)(1-sin^4x) ÷ (1+sin^2x)

trigonometry

The wheels of a car have radius 11 in. and are rotating at 800 rpm. Find the speed of the car in mi/h. mi/h

TRIGONOMETRY

Suppose tan theta=15pi/18 is less than theta 3pi/2 , what are the other trigonometric functions?

Trigonometry

If Cot θ = -Square Root of 15/7, use the fundamental identities to find Cosθ > 0.

Trigonometry

If 5cosA+3=0 and 180(degrees)<A<360(degrees) Determine 1. Tan^2A And 2. SinA over cosA

math trigonometry

Prove that 2sin150*cos315*cos(90-x)/sin(360-x)cos(-240)sin135

Trigonometry

An automobile tire has a diameter of 36 inches. How many revolution will the wheel make as the automobile travel 1 mile

Trigonometry

If the terminal side of angle theta passes through point (-3, -4), what is the valuse of sec theta? 1) 5/3 2) -5/3 3)5/4 4)-5/4

Trigonometry

Determine all the values of theta,0 degrees < or = theta < 360 satisfying csc(x)<0 and cot(x)>0

Trigonometry

Evaluate arctan(cot10Pi/9) sec(arccos(-1/6) csc(arcsec(5/3) sin(2 arccos(sqrt5/5)

Trigonometry

If 5cosA+3=0 and 180(degrees)<A<360(degrees) Determine 1. Tan^2A And 2. SinA over cosA

Trigonometry

If 5cosA+3=0 and 180(degrees)<A<360(degrees) Determine 1. Tan^2A And 2. SinA over cosA

Trigonometry

simplify: 2sin35 deg times cos35 deg.

Trigonometry

[sinxcosx/(1+cosx(]-[sinx/(1-cosx)]= -(cotxcosx+cscx)

trigonometry

If sine of an angle is ¼ and cosine of an angle is 15/4.. find cosecant.

Trigonometry

Show that cos M(1/cosM-cosM) is equal to sin^2M

Trigonometry

Where does the graph of y = tan theta intersect the graph of y = -1 where n is any integer?

trigonometry

in triangle abc, m<c=90, bc=20, and ba=40. a.find sine a b.find measure of <a

trigonometry

Graph the function f(x)=-1/2sin2x+1 on the interval [-2pi, 2pi]

Trigonometry

Determine sin x - tan x - sin x=0 for 0 ≤ x < 360°

Trigonometry

Can you verify this identity? cos(4x)cos(2x)= (1/2)[cos8x+cos2x]

Trigonometry

Solve: 2cos^2 theta - 3cos theta+ 1= 0 interval [0, 2ð)

Trigonometry

Solve triangle ABC: B= 60 degrees, C= 90 degrees a= 4 feet

trigonometry

{1/(sec x - 1)} - {1/(sec x +1)} = 2 cot^2 x solve using identities?

Trigonometry

Prove that cos(A+B)cosC - cos(B+C)cosA = sinBsin(C-A)

Trigonometry

IfA=340°, prove that 2sinA/2 = -(v1+sinA) + (v1-sinA)

Trigonometry

how many solutions does the system {y = x, y = tan x have? what is sec^-1 (sec-ð)?

Trigonometry

Write tan(pi/4 - Beta) as a function of Beta only.

Trigonometry

Write cos (lambda + pi/3) as a function of lambda only.

Algebra 2/ Trigonometry

If cos θ = c, then sin²θ/2 equals 1) 1-c/2 2) 1+c/2 3) 1-c/c+c 4) 1-c/4

Trigonometry

Solve tan2A - 2tanA = -1 for 0º≤A≤360º.

trigonometry 28

In triangle ABC , if angle c=90°,then prove that sin^2 A+sin^2 B=1.

TRIGONOMETRY

Express tan theta in terms of cosec theta

Trigonometry

A=30 degrees, a=9 and b=8. Find the missing sides/angles. I did cos39=x/8 and reduced that to 8cos39=x. I got 6.92. But that's not a valid answer, so I can't go from there. What did I do wrong? Can you show me how to get the other answers as well, please?

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

trigonometry

The function d=11cos6t describes a simple harmonic motion, where d is the distance(in meters) an object travels in t seconds. What is the time required for one complete cycle?

trigonometry

please me to answer this question.because i will pass this coming monday march 21,2011.fin the diameter of three circle inscribed in a triangle. whose base is 50 cm.

trigonometry

please me to answer this question.because i will pass this coming monday march 21,2011.fin the diameter of three circle inscribed in a triangle. whose base is 50 cm.

trigonometry

please me to answer this question.because i will pass this coming monday march 21,2011.fin the diameter of three circle inscribed in a triangle. whose base is 50 cm.

Trigonometry

Find all solutions of 4(sin(x)**2)-8cos (x) -8 = 0 in the interval (2pi, 4pi). (Leave your answers in exact form and enter them as a comma-separated list.)

trigonometry

how fast is a toy car moving in ft/min if it makes 20 laps in one minute on a circular track of radius 3 feet ? ( i need to know how to set this problem up)

Trigonometry

Law of Sines sigma=27 deg 30' c= 52.8 a=28.1 Please show two solutions (beta1, beta2,...) due to acute and obtuse angles. Thank you so much for helping!

College Algebra and Trigonometry

if x = ucos(pi/4) - vsin(pi/4) and y = usin(pi/4) + vcos(pi/4), find A, B and C so that, 5x^2 - 6xy + 5y^2 = Au^2 + Buv + Cv^2. Thanks, I really don't know what to do, I've already used almost 20 sheets of paper. Please help me. Thanks.

Pre-Calculus (Trigonometry)

An angle in standard position such that sinÈ = 5/13. Determine the possible values of È, to the nearest degree. Answer: I got 23°. (How do I get the second one?)

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

Trigonometry

How do I find all solutions to: tanx+3cotx=4? The answer choices are: a.) x=arctan3+nPi b.) x=arccot3+nPi

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.

trigonometry

A pilot is flying with an air speed of 185mph. Find the ground speed of plane and the direction of flight.

trigonometry

Use identities to simplify each expression. 1) (sin2t) (cos5t) + (cos2t) (sin5t) 2) {1/(sec x - 1)} - {1/(sec x +1)} = 2 cot^2 x

Trigonometry

A side 2.8m long makes an angle of 25 degrees with the ground how high is the top of the slide above the ground .

Trigonometry

Solve cos 2x – 3sin x cos 2x = 0 for the principal value(s) to two decimal places. Please explain.

Trigonometry

A bicycle with a 26-inch wheel(diameter) travels a distance of 700 feet. How many revolutions does the wheel make?

trigonometry

the bases of a trapezoid are 22 and 12 respectively. The angles at the extremities of one base are 65^ and 40^ respectively. Find the two legs

Trigonometry

A bicycle is traveling at 20 feet/second. If the diameter of the wheel is 24 inches, what is the angular velocity in radians/second?

trigonometry

the angle of elevations from the top of the tree to the point on the ground is 63 yards from its base 45degrees. How tall is the tree?

Trigonometry

Johns eyes are 6 ft from the ground. He is standing 70 ft away from a tree. If the angle of elevation is 24 degrees, then how tall is the tree?

Trigonometry

Graph the following functions .include two full periods .a)y=3cos(2x) and b)y=-4sin(4x) on same graph

trigonometry

a motor boat moves in the direction of N 38° E for 3 hrs at 20 mph. How far north and how far east does it travel?

Trigonometry- ??????

Solve the equation for 0≤ x ≤ 180 given tan(x) sin^2(x)=2tan(x) How do I do this? Thank you and Merry Christmas! :)

trigonometry

what is the smalliest positive anglecoterminal of -61 degrees,501,632,1024,-350,721,-0.5 and 512 degrees?

Trigonometry

A rocket is launched from a tower that is 200 feet high at 1000ft/sec at 48°. How far does the rocket travel?

trigonometry

if tan theta= 1/2, find the exact values of the five remaining trigonometric functions for theta, which is acute

trigonometry

The shadow of a vertical tower is 65 ft long when the angle of elevation of the sun is 35 degrees. Find the height of the tower

math- Trigonometry

If cos degree equals to 0.8641 What is Sin degree? I have no idea how to find this. Please help me. Thank you

maths trigonometry

solve the equation (cos theta +1)(tan theta minus 1)=0 for solution between 0 and 2pii.

maths trigonometry,

find all solutions between 0 and 2pii for (tan theta =1)and (cos theta =negative 1/2).

Calc

Question: Using trigonometry, add these two vectors. 7m/s [N30E] and 2m/s [S17E]. THIS is my answer: 6m/s [N45E] is this the correct answer?

trig

how come you get different answers if you take different paths in trigonometry? (when you choose to use sin, cos or tan)

trigonometry

given triangle ABC with AB=7cm, BC=8cm and AC=9cm calculate 1. the size of the largest angle 2. the area of the triangle

trigonometry

Find all the angles between 0 degrees and 360 degrees which will satisf y the equation: 5tan^2 y +5 tan y = 2 sec^2 y

trigonometry

an automobile tire has a diameter of 36 inch.how many revolution will the wheel make an arc the automobile travels 1 mile (5280 A)?

Trigonometry

What is the period of y = ã3sin (1/3x-ã1/3)? A, 6ƒÎ B. ã3ƒÎ C, 2ƒÎ/3 D. ƒÎ/3 What is tan^-1 ã3/3? A. ƒÎ/6 B. ƒÎ/4 C. -ƒÎ/3 D. -ƒÎ/4 What is the frequency of y = tan (ƒÎ/3 x) ? A. 3 B. 1/6 C. ƒÎ/3 D. 1/3 What is the amplitude of y = 1/5 sin (ã...

Trigonometry

√3 + 5cos⦸ = 3 cos⦸ Can someone please explain for me how to express the answer in radian measure? Thanks

Trigonometry

Triangle ABC is given where the measure of angle a is 33°, a=15 in., and the height, h, is 9 in. How many triangles can be made with the given measurements? Explain your answer.

trigonometry

an isosceles triangle is inscribe in aradius 100 in .find the angles of the triangle if it is base subtends an arc of 143.7 in

trigonometry

It is given that sin(θ)=15√. In addition, a and b are coprime positive integers such that cos(2θ)=ab. What is the value of a+b?

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?

Trigonometry

What is the surface area of the cube below? answer in simplest radical form only one surface is 576 cm^3

algebra & trigonometry

The sum of two numbers is 210. If one number is the square of the other, find the set of numbers. Thanks

Trigonometry

Use De Moivre's Theorem to write the complex number in trigonometric form (cos(2pi)/7)+ i sin((2pi)/7))^5

trigonometry

one leg of the right triangle is 10 cm and the hypotenuse is 20 cm longer than the other leg.Find the lenght of the unknown sides.

maths trigonometry

solve the equation (2cos theta +1)(tan theta minus 1)=0 for all values between 0 and 2pii.

trigonometry

a triangle has sides equal to 68 cm, 77 cm and 75 cm, respectively. find the area of the escribed circle tangent to the shortest side of the triangle.

trigonometry

2*cos^2(a/2)=(sin^2(a))/(1-cos(a)) can anyone help to prove this identity?

Trigonometry

Where does the graph of y = tan theta intersects the graph of y = -1.

trigonometry

how to solve sin 4x= cosx(4 sinx - 8 sin ^3x)

Trigonometry

How do you simplify: -5(cot^2 theta - csc^2 theta)?

Trigonometry

verify the identity: (1-cosx)(1+cosx)= sin^2 x

Trigonometry

verify the identity: 1-cos^2x/1-sinx= -sinx

Trigonometry

verify the identity: 1- (cos^2x)/(1-sinx)= -sinx

Trigonometry

Verify the Identity: (1-cosx)(1+cosx)=sin^2x

maths (trigonometry)

if sec x +tan x=p, then tan xeuqalto what. How?

maths trigonometry

if theta = 45, the value of cosec ^ 2 theta is ?

Trigonometry

Prove that cos(A+B) + sin(A-B) = 2sin(45°+A)cos(45°+B)

Trigonometry

Prove that tan2A = (sec2A+1)√sec²A-1

Trigonometry

cos²a + cos²(a+120°) + cos(a-120°) = 3/2

Trigonometry

In a right triangle with ã the right angle, b = 86.5 and c = 125.8. What is â

trigonometry

Prove cotx-1/cotx+1=1-sin2x/cos2x

Trigonometry

What is -6i in standard form? It is originally in trig form.

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