# Trigonometry

TRIG HELP ASAP
I really need help on this problem. A sector has area of 15 in^2 and central angle of 0.2 radians. Find the radius of the circle and arc length of the sector

Geometry/trig
A plane is flying due south at a speed of 300 mph. The wind is blowing from the west at a speed of 40 mph. Find the resultant speed of the plane and the direction of the plane

trig
tan theta= square root of 3 / 3 if o degrees is less than or equal to theta less than o equal to 360

Calculus
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!

trig
A race driver has a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.5 m/s^2; after 3.6 s he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant ...

trig
If tan theta = sin theta, and theta is greater than or equal to 0 and less than or equal to 2 pi. find cos theta and what is theta

trig
What is the domain, range, and period of y= sin x + 1 What is the domain, range, and period of y= -cos x Can someone please help?

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
a. What is the length of the hypotenuse of triangle ABC? b. What is the length of the shorter leg of triangle ABC? c. What is the length of the longer leg of triangle ABC? angle A=60, angle B=30, angle C=90 the triangle has a height of 10

trig
use the discriminant to solve for the smallest value of b that would make the roots of the equation x^2+bx+5=o imaginary

trig
what is the correct answer in trigonometric identities. DiViDE ; x^5 + 5x^4 - 2x^3 + 3x^2 + 2x + 1 by x + 3

trig
what is the correct answer in proving trigonometric identities if tan theta / sin theta = sec theta

trig
what is the correct answer in proving trigonometric identities if tan theta/sin theta = sec theta

trig
what is the correct answer in proving trigonometric identities if tan theta cos^2 theta + cos^2 theta

Trig
Its a 30-60-90 triangle there's a line in the center that= 10 a. What is the length of the hypotenuse of triangle ABC? b. What is the length of the shorter leg of triangle ABC? c. What is the length of the longer leg of triangle ABC?

Trig
angle b=25 degrees, angle c=90 AB= 25 a. Find the length of side b to two decimal places. b. Find the length of side a to two decimal places in three different ways.

Trig
Sarah used her calculator to find sin125 degrees . She wrote down sin125 degrees = -.57. How could Sarah recognize that her answer is incorrect?

trig
a grocery store display consists of cases of soda. there are 15 cases at the base, and 1 case at the top. if there are 15 rows, how many cases are needed for the entire display? a) 180 b)30 c)130 d)15

trig
What is the length of the circular arc intercepted by a central angle of 20degrees in a circle with a radius of 5cm?

trig
What does sin(squared)t + cot(squared)tsin(squared)t equal? and can someone explain it?

alg2/trig
starting salary for a job is \$30,000 with a guaranteed raise of \$5,000 each year for the first 5 years. write an explicit formula to represent how much money you would earn each year. please somone help!

trig
The angle of elevation to the top of a very tall Building is found to be 15° from the ground at a distance of 1 mi from the base of the building. Using this information, find the height of the building

Math-trig
A Ferris wheel with a diameter of 100 feet rotates at a constant rate of 4 revolutions per minute. Let the center of the Ferris wheel be at the origin. The height h (in feet) of a Ferris wheel car located at the point (x, y) is given by h = 50 + y where y is related to the ...

trig
4 costheta +3sintheta=5,4sintheta-3costheta=WHAT

trig
in proving trigonometric identities if sec theta - tan theta sin theta is equal to cos theta. what is the correct answer?

trig
in proving trigonometric identities if 1 + sin^2 theta is equal to 2 sin^2 theta + cos^2 theta. what is the correct answer?

trig
in proving trigonometric identities if cot theta sin theta = cos theta. what is the correct answer?

trig
starting salary for a job is 30,000 with a guaranteed raise of \$5,000 each year for the first 5 years. write an explicit formula to represent how much money you would earn each year. how much money would you earn in the fifth year?

trig
How can I find the exact value of 4cos(7ð/4)-2sin(ð/3)?

trig
how can we find the value of sin -720

alg2\trig
a colony of 300 bacteria doubles each day. write an explicit formula to determine how many bacteria there would be on the nth day. how would you do this?

trig
The terminal side of θ lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of θ by finding a point on the line. Line: (55/48)x Quadrant:III sin(θ)= cos(θ)= tan(θ)= csc(θ)= sec(θ)= cot(θ)=

trig and algerba
6+7(t - 1) = 5(t + 7) + 8 what does t equal

trig
If A=55 degrees 55 minutes and c=16, find a.

trig
Prove (1+secx)/(tanx+sinx)=cscx

trig
Find the indicated trigonometric function, given that è is an angle in standard position with the terminal side passing through the given point. 2) (15, 20); Find csc è. A) 5/3 B) 3/4 C) 5/4 D) 4/3

Trig
Solve the following trig equation 2cos(x-π/6)=1

Trig
Prove (1+secx)/(tanx+sinx)=cscx

Trig
Solve 5^2x -4(5^x)=12

Trig
Solve Log[8](log[5]x)=0

Trig
Write the following in terms of sin(θ) and cos(θ); then simplify if possible. csc(θ) - cot(θ)cos(θ) =

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!

trig
sin2x=cos3x then sinx=?(if 0<x<pi/2)

trig
Find sec^2 x (4 tan^2 x-3)

Trig
Sketch a unit circle and label the terminal points corresponding to t= pi/4, 3pi/4, 5pi/4, 7pi/4. Include the coordinates of each point. I have 3 other problems like this and i have no clue how to do them. can someone help please?

trig
if x is an acute angle and sinx= cosx then find the value of x?

Precalculus
Consider the equation 7sin^2x - (4sin2^x)/cosx = -1 a) Put the equation in standard quadratic trig equation form. Why is it 7sin^2x - 8sinx + 1 =0?

trig
What is cos(11pi/3)? Explain your thinking. What is sin(13pi/4) ? Explain your thinking.

trig
Sketch a unit circle and label the terminal points corresponding to t= pi/4, 3pi/4, 5pi/4, 7pi/4. Include the coordinates of each point

trig
What are the coordinates of the terminal point determined by t=7pi/6 ?

Trig
tan(θ) = a (a ≠ 0), find cot(θ).

TRIG
Find the remaining trigonometric ratios of θ if sin(θ) is given and θ QI sin(θ)=7/sqrt 149 cos= tan= cot= csc= sec=

trig
how to do root3 value

trig
Graph f(x)= second(2x+3.14/4)

trig
Determine if the value of each trig function is positive, negative, zero, or undefined. a) tan 310 degrees b) cos 7pi/6 c) sin -245 degrees d) sec( -7/2)

trig
Find the length of the circular arc intercepted by a central angle of 20 degrees in a circle or radius 5cm

trig
Find the reference angle for each given angle: a) 325 degrees b) 14pi/3 c) -190 degrees

trig
If point G(a,b) lies on the terminal side of angle theta in standard position, what is the value of sin(theta) if point G also lies on the unit circle?

trig
If point (3, -8) lies on the terminal side of an angle A in standard position, find: a) sinA b) tanA

trig
If the point (-3,0) lies on the terminal side of angle theta in standard position find: a) csc theta b) cot theta

trig
The second hand on a clock is 8 inches long. If the second hand travels a distance of 10pi inches, what is the positive radian measure of the angle that the second hand travels through?

trig
Are 22pi/5 and 100 degrees coterminal? explain.

trig
Find the exact value. Without using a calculator a) cos (-17pi/6) b) sec (3pi/2)

trig
If theta is the measure of an angle in standard position with the given conditions, find the quadrant(s) in which the terminal side of theta lies. a) cot theta < 0 b) cos theta > 0 , csc theta < 0

trig
Use a ratio identity to find tan(θ) if given the following. sin=6/sq rt 37 and cos 1/sq rt 37

trig
Find the remaining trigonometric ratios of θ if sin(θ) = -1/6 and θ is not in QIII cos tan cot csc sec

trig
Give the reciprocal of the following. 7/15

trig
If sin(θ) = 8/17 and θ terminates in QI, find cos(θ)

trig
find two values of theta, zero degrees is than or equal to theta which is less than 360 degrees, that satisfy the given trigonometric equation. tan theta equals radical 3.

trig
Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25

trig
a. A sector that has been cut out of circular plastic sheet which has a circumference of 12.31 m. If the central angle of the sector is 1/4 of a revolution, find the area of the sector.

trig
What is the fundamental period of the function f(x)=4/9sinx

trig
Find the length of side b to the nearest whole number if side a=105,angle A=65 degrees and angle B=37 degrees?

trig
how to find out maxima of function 3acos3theta

trig
not sure how to simplify tan(t+pi)/sin(t+2pi)

trig
city A is 300 miles directly north of city B assuming the earth to be sphere of radius 4000 miles determine the difference in latitude in degrees of the two cities

Trig
If a plane takes off on runway 31 (N 31o W) and flies 4 miles, then makes a right (90o) turn and flies 11 miles, what bearing will the traffic controller use to locate the plane?

trig
If the line OP of radius and(x,y) is rotated through a certain angle about the oringin

alg2/trig
what is the smallest value of k that would make the roots of the equation x^2-2x-k imaginary? please help, no idea how to do this.

trig
tan-5n over 3

TRIG HELP ASAP
I need help trying to find the major and minor axis on this problem: x^2+3y^2-6x+24y+6=0

trig
How do you decide if csc=74 is greater than or less than cos=74 without using a calculator?

Trigonometry
What are these things called: -cos x = cos -x What are the rules to these trig rules? Thanks

trig
4cos^2 theta = 3 where 0 degrees < theta< 360

alg2/trig
1)3x^2-12x-21 solve by completing the square in simplest radical form 2) (1/x+3)-(2/3-x)=(4/x^2-9)find values of x 3)3/radical(3a^2b^4) is equivalent to 4) factor completely 27x^-75x^4

trig
Please explain to me how to get this -- what quadrant tan theta < 0, sin theta < 0 is in.

Trig
what quadrant is this in and please explain... sin theta < 0, cos theta > 0

trig
5pi/7 what quadrant is it in???

Trig
Find the speed in both radians per second and degrees per second for the hour hand, the minute hand, and the second hand on a clock.

algebra 2 trig
express the product of (2/3x^2-1/2x) and (12x+4/5) as a trinomial

trig
How to get 5degree without using calculator using identities?

trig
if you are riding on a ferris wheel that is 60 ft tall and it takes you 5 minutes to make 1 revolution, what is your linear velocity?

Math
Would someone verify these answers. 1. A person waves his hand back and forth, where their finger tips move past the starting position 4 cm in each direction. If he waves 20 times every 15s, what sine equation models the movement of the hand if the hand starts in the upright ...

trig
I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x)= secx i(x)= cscx

trig
I don't know to find the derivative of the following trig functions. Please help. f(x)= cotx h(x0= secx i(x)= cscx

trig
If theta =( -7pi )/( 3) , then sec(theta) equals...?

trig
How do I get exact measures? cosine 270 degrees sin 90 degrees tan 360 degrees csc 45 degrees no calculator!

trig
how do I find this without a calculator? sin 90 degrees?

geom/trig
Using scissors to cut a rectangular piece of paper from one corner ro the opposite corner. The cut is 36 cm long and makes a 34 degree angle to the uncut edge. How many cm long is the paper (from the corner where he started the cut?

trig
I have a couple of these and cannot locate directions I can understand-please help! Draw the graph of y=3cos(2x) for 0< or= x < or = 2 pi