4,385 results, page 18
How do I find 1 positive and 1 negative coterminal angle for: 1) -460 degrees 2) 11pi/4 3) -12pi/5 WERE DO YOU GO TO GOOGLE BECAUSE I TIRED!
find the area of a circle inscribed in triangle ABC where a=9, b=13, and the measure of angle C=38 degrees
Im having problems solving this equation: 2sin(x) = cos(x) + 2 I keep getting an imaginary number..:/
Solve the given triginometric equation analytically 7 sinx - 2 = 3(2 - sin x) If your are online, thank you my dear Reiny:) Priya
Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help cos (7pi/12)
Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help cos (-5pi/12)
tan=.6524 use a calculator to approximate two value of an angle (0<0<360) that satisfy the equation.
for a set of data the line of best fit is given by y=-.687x + 3.431 and r^2=.325. what is the correlation efficient
Please explain inverse functions. i.e. find angle if Sin x = 2.3 divided by 8.15. Answer 16.30 degrees. How did they do that??? Tks
Using a double angle formula how would you find the exact value of this expression? Cos²105° - sin²105°
As the time changes from 4:10 pm to 6:45 pm on the analog clock, determine the change in radian measure of the minute hand.
How do I do these type of problems find the exact value. Do not use a calculator cos 7pi
Find the exact value of the trigonometric function: sec(-pi/12) I am not sure how to answer this off the unit circle.
correction: use the unit circle to fin the ecaxtvalue for all trig functions theta=2pi/3
using the trigonometric identities find the exact (radical form) value of cos (105 degrees)
Need answer check pls. Find the rectAngular equation for the plane curve by parametric equAtions. X=t +4 , y= t^2
use the calculator to find the trigonometric values. express your answers in ten-thousandths. sin 53 degrees 30 ft
the leg opposite the 50 degree angle in a right triangle measures 8 meters. find the length of the hypotenuse
find all sets of three consecutive odd integers whose sum is greater than 54 and less than 63
Write an equation of a secant graph that has amplitude of 3, period of pi/2, is shifted to the left pi/4, and is flipped over the x - axis.
trig question 2sin^2x+sinx-6=0 how to solve for x when the restriction is x is greater than or equal to zero but less than 2pi
Verify the following: tan( a + p/2) = -cot a a= alpha and p= pie since I do not have that button.
Find the values of the trigonmeric functions of t from the given information cos t = -4/5 terminal point of t is in quadrant III
sin2x+sin2y=2sin(x+y)cos(x-y) Please helpp mee!! thank you sooo much really!!
how you do you use the power-reducing formula to find the exact value of the trig function: sin^2(37pi/12)
find the exact values of THE SIX TRIGONOMETRIC FUNCTIONS OF THE ANGLE THETA WHICH HAS A POINT ON THE TERMINAL SIDE OF (-1,4)
verify the identity. cos2 x - sin2 x = 1 - 2sin2 x the 2's next to the sin and cos on the right sides are powers.
Find all solutions on the interval [0,2pi] for the following: 2sin^2(x)-5sin(x)=-3 cos^2(x)+sin(x)=1
determine wheather each of the following is an identity or not prove it 1. cos^2a+sec^2a=2+sina 2. cot^2a+cosa=sin^2a
Use the appropriate cofunction to find an equivalent expression for cos 54° cot 24 sec 32 sin 36 csc 44
use an apropriate sum or difference indentity to prove the double-angle identity cos2u=1-2sin2u
Find the numerical value of cos(60degree) + cot(30degree): (A) 1/2 (B) 3p3/2 (C) 12 +p3 (D) 52p3 (E) None of the above.
How would you write the partial fraction decomposition of the rational expresion 1/(x^2)-25? I know that you factor the denominator, so that's 1/(x-5)(x+5). What are the next steps?
how much force is necessary to stop a 2500 pound car from rolling down a 40degree slope
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?
Find the exact value of each of the following using reference angles. a)sin 225degrees b) cot 120degrees
I have to factor the expression and use fundamental identities: sins^2xcscx^2-sin^2x sec^4x-tan^4x
A rocket is launched at an angle of ascent (elevation) of 18 degrees. When it has traveled 6000 ft, what is its height above the ground?
Determine the period length of y= 2/3 sin (3x/2 ) I had 3pi/2 but the correct answer is 4pi/3 how do you get that???
Find the measure of the central angle, in radians, given the area of the sector as 22.6 cm2 and a radius equal to 3.7 cm
How would i use my calculator to find the approximate value of the expression, cot 0.2748 rad
find the coordinates of the terminal point on the unit circle determined by t=9pt/7 to two decimal places
Use the Law of Sines to solve each triangle. P=110 degrees p=125, r=200 in triangel PQR
Find the length of the circular arc intercepted by a central angle of 20 degrees in a circle or radius 5cm
The hypotenuse of the right triangle PQR is 16ft. length. The sine of the angle <P is 3/5. How many feet long is the line if QR?
Describe the possible values of variable a such that (/72) + (/a) can be simplified to a single term. Note: (/a) is the square root of a.
Graph one period of the following function. Show all work . y=2sinx+2cosx
solve 6=e^0.2t Round your answer to the nearest hundredth Someone please help me - I don't understand this problem at all!
find the degree measure of a central angle subtended by an arc of 8.00cm in a circle with circumference 20.0cm
Using this graph: imgur [dot] com/utSgKI9 Find the measures of angles A and G in the drawing (m is parallel to n) if C=4x-18 and F=2x+34
Use a half-angle identity to find the exact value for sec(x/2) if sinx = -12/13 ; 3pi/2 < x < 2pi
Solve rounding to 2 decimal places. 9cosx + 4cos(2x) + 1 = 0 over 0° ≤ x < 360° Thanks to anyone that can help! I'm totally stumped.
In right triangle ABC, a = 52 ft and c = 63 ft. Which of the following trig ratios of angle B, would combine the given sides?
Evaluate tan(a-b). No decimals. Only exact answer. Sin a = -7/25, cot b = -8/15 neither a nor b are in quadrant IV.
Evaluate tan(a-b). No decimals. Only exact answer. Sin a = -7/25, cot b = -8/15 neither a nor b are in quadrant IV.
Use Descartes' rule of signs to describe the roots of the polynomial function. m(x)=x^3+3x^2-18x-40
Go over this with me please, I forgot how to do it. Solve the polynomial equation. 15x^3-119x^2-10x+16=0
true or false, the two sets of parametric equations x=t, y=t^2+1 and x=3t, y=9t^2+1 have the same graph. justify your decision.
How much does it cost to paint a triangular surface of sides 6m,5m, and 11m at the rate of rs.20/-per metre square.
Find all solutions (if they exist)for the given equation on the interval [0,2pi) cos^2x-5sinx+5=0
write the transformation of X cubed if it is shifted right four units and then reflected over the X axis
Find the exact value of the trigonometric function given that sin u=3/5 and cos v=-8/17. Both u and v are in quadrant II. Tan (u+v)
Convert the polar equation to rectangular form. r=4cos-4sin What I have so far: r^2=4rcos-4rsin x^2+y^2-4x+4y x^2-4x+y^2+4y=0
Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her first 2 test grades were 81 and 86. What does Lucy need to make on her third test in order to have an exact average of 85 and be exempt from her exam?
How much pure acid must be added to a 30% acid solution to make a 60L solution which is 50% acid? This was the answer I got from Reiny. amount of pure acid to be added -- x L 1(x) + .3(60-x) = .5(60) 10x + 3(60-x) = 5(60) 10x + 180 - 3x = 300 7x = 120 x = 120/7 or appr 17.14 L...
I am almost finished iwth my questionings:) Solve the given triginometric equation analytically sin4x - cos2x = 0 Priya
Evaluate giving exact values and identities. Calculator based solutions are not acceptable. Thanks for any help cos (4pi/3 – 3pi/4)
for a set of data, the line best fit is given by the y-0.697x + 3.431 anr r^2 = .325. what is the correlation co efficient
solve the following equation in the interval [0,2pi]. Give the answer as a multiple of pi. Do not use decimal numbers (sin(t))^2=3/4
give 3 different coterminal angles in radians to: pie/3 i changed that to degree and got 60 degress, but now i'm stuck...i don't know what to do
Solving Multivariable Linear Systems: 3x-5y+5z = 1 5x-2y+3z = 0 7x-y+z = 5 I am confused on how to solve this. I'm supposed to use the Row-Echelon form. Thanks.
Point P is located at the intersection of a circle with a radius of r and the terminal side of an angle q. Find the coordinates of p to the nearest hundreth. q = -60° , r = 7
We started a new lesson on Monday on identities. Our test is tommorrow. I have no idea of what I'm doing! Can somebody help me study?
How do I simplify this? cos4xcos3x-sin4xcos3x I pulled the cos3x out as a common factor but that doesn't really help. Can someone please direct me on this. Thanks!
The function d=-8cos2t describes a simple harmonic motion, where d is the distance(in meters) an object travel in t seconds. What is the frequency?
find, to the nearest minute, the solution set of 1- sin x = 3 cos^2 x over the domain 0 degrees to 360 degres
find all values of x on interval 0-2pi. (sin4x)(cos7x)=(cos4x)(sin7x) identities should be used.
Given that sin x = - ã2/2 and that cos x is negative, find the other functions of x and the value of x. can you explain how this problem can be solved please.
Given a right triangle with legs 8 and 5, find the measure of the two acute angles. (Round to the nearest hundredth
how do you graph y=-(1/4)sin(3/4x+pi/8? include the amplitude, period, vertical translation, horizontal shift, and table of values please.
Find the angle between 0 and 2pi that is coterminal with negative one half pi; expressing the answer in radians in terms of pi.
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
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)
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)
find all values of theta in the interval (0,360) that have the given value: sintheta= √2 ______ 2
use a calculator to find the decimal approx. (roud 8decimal places) : sec28°6' does it equal 1.13362379 or 87.99624264 ???
Solve. 2sin(2ƒÆ) + ã3 = 0 interval [0, 2ƒÎ) How do I start this? I feel like maybe Trig Identities, but I'm not really sure.
write an equation expressing: cos37cos99 as a sum Review question. I know the formula. Having trouble with working it out.
state the amplitude, period, and phase shift of the function -0.4 sin (10x+pie/2)
If A is between 270degrees and 360degrees, and cos A=12/13, find the exact value of: sin2a, cos2a, sin1/2a, cos1/2a
an isosceles triangle has a perimeter of 60in. the congruent sides measure (2x+9)cm. the length of the third side is 3xcm. what is the value of X?
Integrate [1/square root of(e^(2x)-1)]. I have to use u substitution. We are doing the integrals of inverse trig functions, but I cannot get it to work out!
Find sin t,cos t and tan t when the terminal side of an angle of t radians passes through ( -3/5 , -4/5) on the unit circle.
What would be the force required to push a 100-pound object along a ramp that is inclined 10 degrees with the horizontal?
simplify the expression to a single term: (1-2Sin^2 X)^2 + 4sin^2 X Cos^2 X I'm not sure how to start this or which identities to use. Any suggestions?
I don't understand what to do after i convert everything into cos and sin. Verify: cosx(tanx+cotx)=cscx
This has to do with dot products (I can't make the arrow above the u, i, or j). Given u = 4i - 6j and v = -3i + 5j, find 4u-(1/2)v Am I just supposed to plug in what u and v are equal to in 4u-(1/2)v? If so, is the answer (35/2i - 53/2j)
A hiker walks 900m east and 500m south .Find the bearing of the finishing position from the staring point?
Solve triangle ABC given the following conditions: 1. C = 135.77 deg, b = 10cm, a = 12cm 2. a = 11.5m, b = 10m, c = 16.94m
Use the law of cosines to show that the measure of each angle of an equilateral triangle is 60deg. Explain your reasoning.