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Trigonometry
Page 7
Questions (13,135)
evaluate the expression under the given conditions.
cos(θ − ϕ); cos(θ) = 5/13, θ in Quadrant IV, tan(ϕ) = − square
4 answers
asked by
Ruth
13,072 views
Suppose that (x,5/13) is a point in quadrant 2 lying on the unit circle. Find x. Write the exact value, not a decimal
5 answers
asked by
Julia Hunt
6,523 views
If θ is an angle in standard position and its
terminal side passes through the point (−3,2), find the exact value of cscθ . I
5 answers
asked by
Rony
7,230 views
Two satellites are in Earth's orbit and are 424 km apart. If an observer is 658 km away from satellite A and 471 km away from
7 answers
asked by
girly girl
5,293 views
What is the frequency of the function f(x)?
f(x)=−2sin(x/4)+3 Express the answer in fraction form. would is be (x/4)?
4 answers
asked by
sammiexo
3,952 views
cos(2tan^-1(15/8))
4 answers
asked by
Amanda
1,739 views
Let x, y, and z be real numbers such that cos(x) + cos(y) + cos(z) = sin(x) + sin(y) + sin(z) = 0.
Prove that cos(2x) + cos(2y) +
4 answers
asked by
Pip
719 views
a pilot wants to fly on a bearing of 66.4 degrees. by flying due east, he finds that a 57-mph wind, blowing from the south, puts
3 answers
asked by
brandy
1,755 views
A search and rescue aircraft, travelling at a speed of 240 km/h starts out at a heading of N 20 degrees West. After travelling
3 answers
asked by
Sara
1,611 views
From a weather balloon high in the air, the angle of depression of a ground marker is 27.8 degrees. If the balloon rises 345 m
4 answers
asked by
Dylan
2,329 views
A woman standing on a hill sees a flagpole that she knows is 65 ft tall. The angle of depression to the bottom of the pole is
4 answers
asked by
Dominic
9,138 views
A tunnel for a new highway is to be cut through a mountain that is 260 feet high. At a distance of 200 feet from the base of the
4 answers
asked by
Marie
2,422 views
Assume 𝛼 is opposite side a, 𝛽 is opposite side b, and 𝛾 is opposite side c. Assume that a = 7sqrt(3), b = 7sqrt(2),
4 answers
asked by
Kate
917 views
A ladder leaning against a house makes an angle of 60° with the ground. The bottom of the ladder is 7 feet from the foundation
17 answers
asked by
boopboooooop
142 views
The point (1/3,1/4) lies on the terminal side of an angle.
Find the exact value of the six trig functions, and explain which
4 answers
asked by
Lucy
2,364 views
find acute angle A and B satisfying secAcotB-secA-2cotB+2=0
7 answers
asked by
ajit yadav
4,368 views
A ferris wheel is 20 meters in diameter and boarded from a platform that is 3 meters above the ground. The six o'clock position
4 answers
asked by
Taylor
3,675 views
sin è = 0.1736
O = ? H = 11
4 answers
asked by
Love
3,048 views
express 40% of sum of angles of a triangle into radian.
5 answers
asked by
emily
1,602 views
what is tan2a if sina=1/2
5 answers
asked by
skorge
2,177 views
Find the period and the amplitude of the periodic function y= -5 cos 6x
a. period = 1/3pi, amplitude = -5 b. period = 1/6pi,
7 answers
asked by
Lilly
3,430 views
A boat sails 150km on a bearing of 042degree and then 250km due east . How far is the boat from the starting point
45 answers
asked by
Kemi
2,396 views
How do I solve this?
tan^2x= 2tanxsinx My work so far: tan^2x - 2tanxsinx=0 tanx(tanx - 2sinx)=0 Then the solutions are: TanX=0
4 answers
asked by
Chris
3,593 views
Define the inverse cotangent function by restricting the domain of the cotangent function to the interval (0, π). Evaluate the
4 answers
asked by
anonymous
2,004 views
if y=tan u , u=v-1÷v, and v=ln x , what is the value of dy÷dx at x=e?
4 answers
asked by
Anonymous
684 views
The height in metres of the water in a harbour is given approximately by the formula d=6+3cos30t, where t is the time in hours
5 answers
asked by
David
1,460 views
Solve the equation: sin (3x+30°) =√3/2 for 0°≤x≤90°
5 answers
asked by
Anonymous
1,641 views
Two observers P and Q 15m apart observe a kite in the same vertical plane and from the same side of the kite.The angle of
19 answers
asked by
Debbie
5,725 views
A flagpole and a building stands on the same horizontal level.From the point P at the bottom of the building.the angle of
15 answers
asked by
Moses
4,480 views
A and B are two point on level ground , both due south of a flagpole. The angle of elevation of the top of the flagpole is 60
4 answers
asked by
Power
670 views
A forest ranger in a 140-foot observation tower sees a fire moving in a direct path toward the windmill by the lake. The angle
7 answers
asked by
Snake
3,993 views
WHAT IS 5pi/16 IN DEGREES?
4 answers
asked by
YAJI
1,127 views
2. Suppose the angle of depression from a race car driver's eyes to the bottom of the 3-foot high back end of the car in front
4 answers
asked by
anonymous
2,432 views
A light air craft takes off flying die north then turns and flies 11 000 metres due west.The plane then has a bearing of 340
5 answers
asked by
Shane
1,273 views
Jasmine is flying a kite. She lets out 86 feet of string. She takes the kite into the ground and measures the angle. The string
4 answers
asked by
Help me pls FAST
846 views
An observer on top of a building 66 metres high,finds the angle of elevation to the top of a taller building to be 34
4 answers
asked by
Shane
1,131 views
1.) From the top of a lighthouse
52 metres high,the angles of depression of two ships due north of it are 42 and 37. How far
4 answers
asked by
MTH
2,814 views
the angle elevation of the top of a cliff from point p is 45 from a point Q which is 10m from P towards the root of the cliff
6 answers
asked by
Anonymous
2,200 views
express 40% of right angle into radian measure.
express two third of straight angle into radian. express sum of angles of a
5 answers
asked by
samantha
2,383 views
find the exact coordinates of the point on a circle of radius 5 at an angle of 5pi/3. thanks for any help! (:
4 answers
asked by
key
4,013 views
Evaluate 2 tan 240 degrees + 3 cos 12 degrees leaving your answer in surd form
5 answers
asked by
Ayomide
1,409 views
I need help!!!!
Write an expression describing all the angles that are coterminal with 127° . (Please use the variable "k" in
4 answers
asked by
HELP
6,573 views
The trigonometry practice exam has 6 questions with the answer A 8 questions with the answer Baby 10 questions with the answer C
4 answers
asked by
Louis
751 views
A surveyor stands 150ft from the base of a tree and measures the angle of elevation to be 46.2. His eye level is 6feet above the
5 answers
asked by
BT
1,795 views
A man walks directly from point A towards the foot of a tall building 240m away. After covering 180m, he observes that the angle
9 answers
asked by
king
2,525 views
Phoebe and Holden are on opposite sides of a tall tree, 125 m apart. the angles of elevation from each top of the tree are 47
6 answers
asked by
anonymous
2,635 views
Observers P and Q are located on the side of a hill that is inclined 32 degrees to the horizontal as shown(picture given). The
3 answers
asked by
Jen
1,402 views
In Philadelphia the number of hours of daylight on day t (t is the number of days after january 1) is modeled by the function
L(t
4 answers
asked by
SAM
3,316 views
a ladder leans against a building forming an angle of 56 degrees with the ground.The base of the ladder is 3 feet from the
4 answers
asked by
Gabby
2,193 views
a fire is sighted from two ranger stations that are 6000 meters apart. The angles of observation to the fire measure 52 degrees
4 answers
asked by
tareena
2,211 views
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