9,261 Answered Questions for the topic trigonometry

Trigonometry Precalculus Pre Calculus

11/29/21

Find the exact value of the expression when it is defined.
sin [sin-115/13 - cos-1(-3/5)]
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Trigonometry

11/29/21

What is the exact value of the trig expression given that sinu= -3/5 and cosv=15/17?
Tan(u+v)Where sinu is 3pi/2<u<2piWhere cosv is 0<u<pi/2
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Trigonometry

11/29/21

Convert each of the following equations from polar form to rectangular form. help pls.
Convert each of the following equations from polar form to rectangular form. a.) 𝑟^2 =4b.) 𝑟=6sin𝜃Hello! I need assistance with these two questions, please!
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Trigonometry

11/29/21

Leave answers in simplified form. Convert from polar to rectangular coordinates.
Convert each of the following as indicated. a) Convert from polar to rectangular coordinates: (7,𝜋/6)b.) Convert from rectangular to polar coordinates: −1+√3𝑖 I need help... more
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11/28/21

Trigonometric Substitution
use the substitution x=3 sec t to evaluate the indefinite integral (dx)/(x*sqrt(x^2-9))appreciate any help thank you!
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11/28/21

Trigonometric Substitution
Evaluate indefinte intergral of (x^10)/((9-x^2)^(13/2))thank you!!
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11/28/21

Trigonometric Substitution
Using the substitution x=2 tan (θ), evaluate the indefinite integral of (4+x^2)^2Thank you in advance.
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Trigonometry

11/28/21

NEED ASAP!! Use a right triangle to find the exact value of
sin [ 2 sin-1 ( √3 )] ‾‾‾‾‾‾ 2(its a fraction, √3 over 2)
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Trigonometry

11/28/21

NEED ASAP!! use right triangles to find the exact value of

cos [tan-1( 4/3) + cos-1 ( 5/13 ) ] cos [tan -1 (4 over 3) + cos -1 (5 over 13)]SHOW ALL STEPS
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Trigonometry

11/28/21

NEED ASAP! write 6sin^4 (x) in terms of first powers of cosine
WRITE: 6sin4(x)in terms of first powers of cosine
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Trigonometry

11/28/21

NEED ASAP! use a right triangle to write cos(tan^-1 x/2). as an algebraic expression

cos ( tan -1 x/2). (x over 2)
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Trigonometry

11/28/21

NEED ASAP! verify the following identity: (see below)
cos(α - β) ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ = cot α + cot βsin α cos β(HINT: if you start with the left hand side, there are roughly 5 steps)please show every step
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Trigonometry

11/28/21

an observer at the top of a 462ft cliff measures the angle of depression from the top of the cliff to a point on the ground to be 5 degrees.
what's the distance from the base of the cliff to the point on the ground? give answer as an exact value in simplest form and as a decimal approximation rounded to the nearest foot. draw and label... more
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Trigonometry

11/28/21

NEED ASAP! let (sqrt 13/5 , y) be the terminal point on the unit circle corresponding to an angle θ. draw a picture of the unit circle, the point and angle. then find the exact values of...
then find the exact values of cot(θ) and csc(θ). do not rationalize denominators. (√13 ,y) (√13 over 5 (fraction form)) ‾‾‾‾‾ 5
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Trigonometry

11/28/21

NEED ASAP!! A round of pie 10inches in diameter is cut into a slice with a 30 degree angle.
use the formula Α= 1/2 r2θ. to find the exact area of the slice. (hint: what crucial piece of information about the formula above was not mentioned?)
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Trigonometry Math Geometry

11/28/21

Find the location of the third point required to make an equilateral triangle.
https :// ibb . co. / RQwYDdg
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Trigonometry

11/27/21

Solve the equation in the interval [0,2π]. If there is more than one solution write them separated by commas.
(cos(x))^2 = 1/16
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Trigonometry Precalculus

11/27/21

an airplane traveling at 400 mph at a cruising altitude of 7.2 begins its descent. if the angle of descent is 1 degree from the horizontal
an airplane traveling at 400 mph at a cruising altitude of 7.2 begins its descent. if the angle of descent is 1 degree from the horizontal, determine the new altitude after 15 min . round to the... more
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Trigonometry

11/27/21

Answer the following:
A ship leaves a port and sails for 4 hours on a course of 78° at 18 knots. Then the ship changes its course to 168° and sails for 6 hours at 16 knots. After the 10 hours (a) what is the distance... more
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Trigonometry

11/27/21

Answer the following:
The bearing from A to B is S 27° E, and the bearing from B to C is N 63° E. An automobile traveling at 62 mph needs 1 1/4 hours to go from A to B and 1 3/4 hours to go from B to C. Find the... more
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Trigonometry

11/27/21

Answer the following:
Two lighthouses are located on a north-south line. From lighthouse A, the bearing of a ship 3742 meters away is 129°43’. From lighthouse B, the bearing of the ship is 39°43’. Find the distance... more
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Trigonometry

11/27/21

A ship travels 55 km on a course of 27°, then travels on a course of 117° for 140 km. Find the distance traveled from the starting point to the ending point.
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Trigonometry

11/27/21

A plane flies 1.3 hours at 110 mph on a course of 38°. It then turns and flies 1.5 hours at the same speed on a course of 128°. How far is the plane from the starting point?
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Trigonometry Math Geometry

11/27/21

Find the value of x.
Questions 16, 17, and 18.The link to the picture: https://ibb.co/2gD4JYC
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Trigonometry

11/27/21

Given <a in quadrant 1 and <b in quadrant 2 with sina= 7/25, cosb=-5/13. A) find exact values for cosa and sinb. B) use the appropriate compound angle formula to find the exact value of sin(a+b)
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