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Trigonometry
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Questions (13,117)
Which trigonometric function requires a domain restriction of [0,pi] to make it invertable?
a. f(x)= sin x b. f(x)= cos x*******
5 answers
asked by
Vsuf
3,449 views
when a child flying a kite has let out 50 m of string the string makes an angle of 55 degrees with the ground. how high is the
5 answers
asked by
Shelby
2,722 views
What is a simplified form of the expression (sec^3 theta) - (sec theta/cot^2 theta)?
a. 0 b. sec theta-tan theta c. cos theta d.
7 answers
asked by
girly girl
3,116 views
The graph of a trigonometric function oscillates between y=1 and y=-7. It reaches its maximum at x= pi and its minimum at x=3pi.
6 answers
asked by
Benji
4,679 views
From the top of a 90 m lighthouse, an operator sees a capsized boat and determines an angle of depression of
12.5° to the boat.
1 answer
asked anonymously
105 views
What values for theta(0 <= theta <= 2pi) satisfy the equation?
2 sin theta cos theta + sqrt 3 cos theta = 0 a. pi/2, 4pi/3,
5 answers
asked by
Fading
12,261 views
1. At which values of x does the graph of f(x)=cos x intersect the x-axis? Select all that apply. (2 answers)
a. 0*** b. pi/2***
9 answers
asked by
girly girl
4,727 views
You are standing at the peak of a mountain that is 14000 feet above sea level. The angle of depression from this peak to a
5 answers
asked by
Sarah
1,904 views
If an object travels in a circle 32pi/5 radians, at what degree measure is it, relative to where it started?
a) 1052° b) 144°
10 answers
asked by
Jake
4,080 views
Richard is flying a kite. The kite string makes an angle of 57 degress with the ground. If Richard is standing 100 feet from the
6 answers
asked by
ashely
5,165 views
The hypotenuse of,c of right triangle ABC is 7.0 m long. A trigonometric ratio for angle A is given for four different
5 answers
asked by
Emily
1,664 views
1) Use double-angle identities to write the following expression, using trigonometric functions of x instead of 4x.
cos 4x 2) Use
2 answers
asked by
marie
576 views
A cruise ship travels 310 miles due east before turning 20° north of east. It travels 150 miles along its new course. How far
1 answer
asked anonymously
71 views
find an expression for sin (5 theta) as a fifth degree polynomial in the variable sin(theta) ?
4 answers
asked by
aparajita
6,063 views
Bobby is standing near a lighthouse. He measured the angle formed from where he stood to the top of the lighthouse and it was 30
6 answers
asked by
Isis
2,151 views
Explain why domain restrictions for inverse trigonometric functions are necessary?
I’m having trouble understanding this topic
4 answers
asked by
Benny
5,164 views
Circle O below has radius 1. Eight segment lengths are labeled with lowercase letters. Six of these equal a trigonometric
5 answers
asked by
Human
5,717 views
What are the ratios for sin A and cos A? The diagram is not drawn to scale.
Triangle Description- AB = 29 AC = 20 BC - 21 A. sin
7 answers
asked by
Battia Anne
8,122 views
An airplane leaves airport A and flies 200 km. At this time its bearing from Airport B, 250 km to the west, is 120 degrees. How
4 answers
asked by
Lyndsie
1,337 views
A wheelchair ramp near the door of a building has an incline of 15 degrees and a run of 7.11 m from the door. Calculate the
4 answers
asked by
Lily Chang
3,550 views
1. Find the altitude of an isocles triangle having base 184.2 cm if the angle opposite the base is 68deg 44'
2. A 13.5m fire
4 answers
asked by
McKenna Louise
1,234 views
Given the trigonometric function y = tan x, find the x-coordinate of the point (3pi/4, ?)
a) -1 b) root 2 c) c d) 1/root 2
5 answers
asked by
Anonymous
1,539 views
A building casts a shadow reaching 13 feet from the base of the building, with a diagonal distance of 15 feet from the top of
1 answer
asked by
moo
118 views
Determine two angles between 0°and 360°that have a secant of -4. Round your answers to the nearest degree.
There are tw answer
4 answers
asked by
Priya
2,343 views
Given angle x, where 0 <= x < 360 (degrees), cos(x) is equal to a unique value.
Determine the value of to the nearest degree.
5 answers
asked by
John
1,224 views
Cate is sailing her boat off the coast, which
runs straight north and south. Her GPS confirms that she is 8 km from Haytown and
5 answers
asked by
Anthony
1,225 views
8sin^2x+sinxcosx+cos^2x=4
5 answers
asked by
LiNnda
1,940 views
A 100-foot vertical antenna is on the roof of a building. From a point on the ground, the angle of elevation to the top and the
4 answers
asked by
heather
2,056 views
There is an angle 𝜃 in quadrant I such that tan 𝜃 = 2/3. Convert the complex number z = 5 cis 𝜃 from polar to
4 answers
asked by
Bryn
444 views
A 20-foot-long footbridge has two diagonal supports that meet in the center of the bridge. Each support makes a 65∘ angle with
5 answers
asked by
Luke
1,826 views
A man 1.9m tall observes the angle of elevation of the top and bottom of a mast as 65° and 41° respectively.If the mast is
4 answers
asked by
Deborah
787 views
(D2-4D+3)y=sin2xcosx
4 answers
asked by
MBU
1,158 views
If the shadow of a building increases by 10 meters when the angle of elevation of the sun rays decreases from 70o to 60o, what
7 answers
asked by
Allison
8,889 views
(Triangle ABC is scalene) AC is a straight shore line and B is a boat out at sea. Angle A is 60 degrees and Angle C is 45
5 answers
asked by
Abby
3,662 views
A communications tower is located at the top of a steep hill, as shown. The angle of inclination of the hill is 58°. A guy wire
4 answers
asked by
Liz
11,641 views
sin(θ − ϕ);
tan(θ) = 5/12 θ in Quadrant III, sin(ϕ) = − sqaure root 10/10 ϕ in Quadrant IV I tried this numerous times
7 answers
asked by
Rachel
7,034 views
Determine the exact value of cos 465 degrees
a) √3 + √2/2 b) √2 + √3√2/4 c)√2 - √3√2/4 d)2+√2-√3√2/4
5 answers
asked by
Melinda
5,162 views
A kite has a string of length 60 metres. On a windy day all the string is let out and makes an angle of between 20 and 36 with
5 answers
asked by
Layla
1,229 views
Which angle between 0° and 360° has the same cosine as the angle 58°?
give your answer as an integer. how do i do this please?
10 answers
asked by
susan
19,708 views
A man whose eye is 120 m above the ground is standing 8 m from a 7 m tall.What is the angle of elevation of the top of the tree
5 answers
asked by
Justina
821 views
A ship leaves port and travels 21km on a bearing of o32 degrees and then 45km on a bearing of 287 degrees.
a. calculate its
10 answers
asked by
Simon Silas Bako
12,605 views
A 20 m vertical telephone pole is standing on a 15 degree slope. One guy wire is attached 30 m up the slope and another guy wire
6 answers
asked by
Emily J
3,580 views
The angle of elevation of the top of a flagpole is 64 degrees from a point 32m away from the foot of the flagpole.Find the angle
5 answers
asked by
Grace
3,476 views
The angle of elevation of the top of house from the bottom of a tower 160m high is 26 degree.From the top of the tower the angle
6 answers
asked by
Perpetua
4,109 views
1) The hour hand on a clock has a length of 12 cm. Let the orgin be at the center of the clock.
a) Sketch the graph of the
4 answers
asked by
Kristien
2,665 views
Without using a calculator, choose (a) the larger of cos 40 and cos 50; (b) the larger of sin 40 and sin 50. Be prepared to
5 answers
asked by
Grace
3,625 views
8sinxcosx=1
I don't know where to go after 2sinxcosx=1/4
5 answers
asked by
Lily
1,796 views
A telephone pole that is 14ft y’all has fallen against a house. If the top of the telephone pole touches the house 8ft. Above
7 answers
asked by
John
3,368 views
a boy standing 70m away from a flag post observe that the angle of elevation of the top and bottom of a tower on top of the flag
7 answers
asked by
Tundr
4,702 views
Given any right triangle with an acute angle theta, a) Explain why csc theta is always greater than or equal to 1
b) Explain why
5 answers
asked by
Emily
3,011 views
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