alg/trig
4,413 results, page 21

Trig Proofs
Please Help: please solve this proof: cosx cosy = 2sin(x+y/2)sin(xy/2) 
trig
Given that sin(5x28)degree=cos(3x5),0 lessthan x lessthan 90degree,find the value of x. 
trig
find the fundamental solution set (FSS) for(cos2θ)(tanθ+1)=0 
Trig
Given that tan(pi/2) = a. Express tan(x) and sin(x) in terms of a. Hint: Use the fact that x = 2.(pi/2) 
trig
given that tan(x/2)=a. Express tan(x) and sin(x) in terms of a. Hint: use that fact that x= 2*(x/2) 
TRIG
Use the cofunction of a complementary angle. PLEASE HELP ME! tan θ = cot (30° + 5θ) 
Trig.
In right triangle ABC, C is the right angle and sinA=(radical 3/2). What is the value of csc B? 
Pre cal Trig
2cos^2x=cosx. Can you subtract the cos from cos^2? Or what would i have to do? 
Trig, Math
State the amplitude, period, phase shift, and vertical shift of f(x)=2cos(1/2xpi/6)1/3 
Help please Trig
Given sinθ=0.76, find θ in degrees to the nearest tenth. 
Math/Trig
Solve: sin x  2sin x cos x = 0 for 0 is less than or equal to x is less than 2pi. 
trig
Cos theta= 1/3, find the remaining trigonometric functions of the acute angle theta 
trig
The parametric equations for a curve in the xy plane are x=2+t^2 and y=43t. Determine the points where the curve intersects the xaxis. 
trig
if x and y are positive acute angles, tan x=1/3and tan y =1/4, find the value of sin(xy) 
Trig
URGENT, Please answer this question: give the value of: Tan(Arctan x+1/x1+Arctan x1/x) 
trig
Use the appropriate identity to find tan(theta) given that cot theta =0.05. 
trig
Given that sin theta= 3/5 and the terminal side is in quadrant II, find tan (pi/2  theta) 
trig
whatis the possibilities for the square root of 2 times tan theta = 2 sin theta 
trig
a right triangle contains a 25 angle. if me leg is of length 5 inches what is the length of the hypotenuse 
Trig
Prove that the equation is an identity: cot4theta  csc4theta = cot sq theta  csc sq theta How ?? 
Trig
3. In the figure below, the perimeter of the parallelogram ABCD is (6a + 8b + 29) and the perimeter of the triangle ACD is (3a + 4b + 32). What is the length of AC 
Trig
cos45cos25  sin 45sin25 = ?? a. cos70 b. sin70 c. cos 20 d. sin 20 which answer is correct ? 
Trig
If the center of a circle is at (2,2) with a radius of 4 the equation of the graph would be : a) (x2)^2 + (y2)^2 = 16 b) (x+2)^2 + (y+2)^2 = 16 I think it would be b is that correct? 
Trig
can you please simplify these in faction form? (pi/3) +1=? (2pi/3) +1=? (3pi/4) +1=? (5pi/4) +1=? (5pi/3) +1=? thank you so much! 
Trig Help
Given that cos2x=7/12 and "270 equal or < 2x equal or < 360", find sinx. Please help and Thank you 
trig
A ship sails 40 miles SOUTH and 15 miles EAST. Find the bearing from where it began? HELP. 
trig
find all the values of X between 0 and 2π such that cos(3xπ/2) = √3/2 
Trig
Is the angle 11pi/12 on the unit circle the same as the angle pi/12? I'm thinking it would be, but I'm not sure. 
Trig
What is the exact value of tan(s+t) if sin(s+t)=56/65. And cos(s)=5/13 and sin(t)=4/5. Everything is in the first quadrant 
trig
If it is given that tan(AB)=tanAtanB/1+tanAtanB and tanP1/1+tanP=tan195 find p 
Precalc with Trig
What value(s) of x from 0 to 2pi solve the following equation: cos squared x  cos x  6 = 0 
trig
find the minimum and maximum value of sin100 degree plus cos100 degree 
Trig
Evaluate and simplify cos(15º). Hint: Substitute 30º45º for 15º. 
trig.
If P (x, y) is the point on the unit circle determined by the real number θ, then tan θ= x/y y/x 1/x 1/y 
Trig
If the terminal side of an angle theta contains the point (1,3), find secant theta. 
Trig
Given Tan(A) = 5 in Quadrant III and Sin(B) = ⅔ in Quadrant II, find Cos(AB). 
Trig.
Please solve this equation. As you write down the steps, please give me a description on what you did. y^3  16y^3/2 + 64 = 0 
trig
the points (0,3), (1.8, .365), (2, .79) (4.5, 1.923) li on a line. Write the equation of the line in slope intercept form. 
12th grade Trig
sec theta = 2, sin theta is less than 0. I'm not sure what to do? Please explain. Thank you. 
trig
Verify the trigonometric identity: [(1–sin²x)/sin²x]–[(csc²x–1)/cos²x]= tan²x I can't figure this out. 
trig
In a right triangle the side opposite the 30 degree angle is 5 meters.Find the adjacent side. 
algebra trig honors
x squared minus four thirds x plus four over nine 
Trig
Could someone please show me how 1 / ( 4 tan (x/2) + 2 ) is converted to: ( sin (x/2) /( 2 sin (x/2) + cos (x/2)) TIA Carol 
Math/Trig
State the amplitude, period, phase shift, and vertical shift of f(x)=1/4sin(6x+2pi)+9 
trig
80 feet from the base of a tower the angle of elevation to the top is 36 degree find the height of the tower 
trig
solve each equation for 0 less than or equal to x greater than 2ð. cot²xcscx=1 thanks:) step by step please :) 
trig
find the period and amplitude of each sine function.then sketch each function from 0 to 2pi: 1)y=3.5 sin 5theta 
trig.
Find the degree measures of 2 angles, one positive and one negative that are coterminal with 135. 
trig
if point P is a point on the terminal side of 0, and 0 is in standard position, find sin 0,cos 0 and tan 0. 1. P(6,8) 2. P (1,3) 3. P (2,40), 4. P (5, 12) 
trig
Use a graph of the cosecant function to find the value of theta for which csc theta equals 1. 
trig
Use trigonometric identities to find sec theta, given that tan theta = Radical 5/ 3. 
Trig
Using tables or a calculator, find tan 16 degrees 15 + cot 32.7 degrees to the nearest hundreths 
trig
the basic N of an antenna rests on horizontal ground. the angle of elevation of the top R from a pt H on the ground is 42 degrees 
trig
determine the phase shift of y = sin(3x  2pi). indicate whether the shift is to the right or left. 
trig
I need to prove parallelogram law using the law of cosines. 2AB^2 + 2BC^2 = AC^2 + BD^2 Please, help me to do this. 
trig
How do i solve this equation over the interval [0degrees,360) cot(theta)+2csc(theta)=5 
alg2\trig
if a3= 17 & a8=37 are terms in annarithmetic sequece, fina a1 & d. the answer is a1=9 & d=4 but i don't understand how they got the answer, please help! 
TrigAlgebra help asap
A rhombus has sides of 5 cm and one diagonal is 6 cm long. Find the area of the rhombus. 
TrigAlgebra help asap
A regular octagon is inscribed in a circle with a radius of 5 cm. Find the area of the octagon. 
AlgebraTrig help asap
A rhombus has sides of 5 cm each and one diagonal is 6 cm long. Find the area of the rhombus. 
trig
a vector has a magnitude of 16 and direction of 120 degrees. write the vector in terms of unit vecotrs i and j. 
Algebra & Trig
at a throwing speed pf 12.2 meters per seconds,what is the angle that produce a distance of 13 meters 
math
Simplify sin 2 theta over 2 cos theta to a single primary trig function 
trig
Find the maximum and the minimum values of sinx + cosx and the smallest value of x which they have these values 
trig identities
Find the exact value of cos (2theta) given csc theta = 8/3 and 0 < theta < pi/2 
trig
what are the values of the angle in the interval 0<the angle<360 that satisfy the equation tan beta radical 3=o 
Trig
Find the area of a sector with the given central angle θ in a circle of radius r. θ = 90°, r = 6 cm 
trig
The point (3, 4) is on the terminal side of angle θ in standard position. Find cot θ. 
trig
Find all real numbers in the interval [0,2pi) that satisfy the equation. cos^2 x+2 cos x+1 = 0 
Trig
2 vectors at a Right angle to each other are pulling on a bolt. vector 1 = 650; vector 2 = 300 then R = ? 
Trig
Write a quadratic equation whose roots are 5 + i radical 2 and 5 – i radical 2 ____ x^2 + _____ x+ ______=0 
trig
I have arrived at .322 as the sine of the angle how do I find the actual angle (in decimal/deg) 
PreCalc/Trig...
Which of the following is the equation of a line parallel to the line y = 3x + 2, passing through the point (10,1)? 3x + y = 29 3x  y = 29 3x  y = 29 3x + y = 29 
PreCalc/Trig...
Help me do this please. Simplify the expressions using imaginary numbers. 1. √16 2. √49 
Trig
Determine the intervals of continuity of f(x)= ln(sin(x)) I looked at the graph and I have no idea how to state the intervals. 
Trig
Write an algebraic expression for the following: sin(arctan〖(x+1)/(x1)〗 ) 
trig
Find the magnitude and direction angle of the vector v. v = 4(cos 125°i + sin 125°j) v = θ = 
trig
Find the component form of v and sketch the specified vector operations geometrically, where u = 4i − j, and w = i + 5j. v = −u + w v = ( , ) 
trig
If sin = 4/5 with A in QII, and sin B = 3/5 with B in QIV find cos(AB) 
trig
Graph the following from X = 0 to x = 2 pi 2cos 6x cos4x + 2 sin 6x sin 4x 
trig
Prove the identity sin(3 pi /2 + x) + sin(3pi/2 x) = 2cosx 
trig
If an angle is pie radians, what is the arc length in radians? 
trig
if a and b are acute angels and sin(a+b)=1,sin(ab)=1/2 then prove that (1)tan(a+2b)=(3)1/2 
trig
trying to find lowest term: cos^2 è1/4 cos è 1 
trig
How do I solve this? If cos x= 3/5, find the exact value of cos 2x 
trig
csc(x)=3 and pi/2 less than (x) less than 3pi/2, find cot(x). 
trig
Prove: 1sinx/1+sinx=sec*2x2secxtanx+tan*2x 
trig
verify the identity: sin(x+y)sin(xy)=2cosx siny 
trig
HOW DO YOU SOLVE THIS PROBLEM, sin theta>0,cos theta>0 
Trig
Solve for 0<x<2pi > (2radical2)cos^2(x)(radical22)cos(x)1=0 
trig
if sin theta = 2/3 in quadrant 1, find sec theta. HELP!!! 
Trig
find (s+t) given that cos s=1/3 with s in quad I and sin T=1/2 with t in quad IV 
trig
covert polar equation r = 6/(23sinè) to rectangular equation 
trig
Evaluate the expression cos 22 degrees and sec 22 degrees 
trig
If 2tanA+cot A=tan B, then prove that 2tan(BA)=cot A 
trig
if cot 17 degrees = 3.2709, find tan 73 degrees 
trig
if x=4 tan theta, express cos(2 theta) as a function of x 
Trig
Eight Fundamental Identities Sec thada  Cos thada How do I do this? 
Trig
IfA=340°, prove that 2cosA/2 = (v1+sinA)  (v1sinA) 
trig
How to get 5degree without using calculator using identities?