622 Answered Questions for the topic Trig

Trig

07/23/16

Question about solving trig equations
a) 5Cos(thetha)=2 b) tan(thetha) +√3=0    Its asking to find exact solutions[0,360)degres. For a) , I dont know how to find 2/5 on the unit circle. I guess I am used to solving when its a... more
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Trig

07/22/16

Long trig equation
sin(thetha) -2sin(thetha)Cos(thetha) =0   There are 4 answers to this but I dont know why there are so many. I only found 2 . 
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Trig

07/22/16

Solving trig equation when sin is squared?
2sin2 (thetha) = 1    When I solved , I got 2 of the answers right. But there are 4 answers. I got 45 and 135 degrees but the other two I have no idea how to find it. The other two answers are... more
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Trig

07/22/16

Solving trig equations
tan(thetha) +√3=0    When I move the radical 3 to the rIght side, it becomes negative. I dont know how to solve when its negative.    The question is asking to find exact solutions between [ 0,... more
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Trig

07/22/16

How to verify this trig identity?
cos(x)tan(x)csc(x)=1
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Trig

07/22/16

Find possible values values for sin(thetha)= sin30
Hi, I dont know what is meant by the question. 
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Trig

07/17/16

Finding trig functions
Find the values of tan(thetha) =3/4 and sin(thetha)<0    What I dont understand is the  sin(thetha)<0 
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Trig

06/08/16

There was a question on my practice test. (8sin3xcos3x)/4tan6x is equal to what, 8, csc1.5x, and I don't remeber the other options. Is the answer 8?
This question was asked on a practice test.
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Trig

05/27/16

Weird triangle
If a=4 b=7 and c=9 then A=???
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Trig

05/27/16

Trig. So hard.
Find the area of the following triangle a=43 inch b=53 inch c=72 inch
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Trig

05/27/16

Trig story problems
A hiker travel 7.5 hrs at 3.5 miles per hour at a heading of S 58° from a ranger station.   A. How far is hiker from ranger station?   B. How far east is the hiker from the ranger station
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Trig

05/26/16

Help trig!!!
A=15.6° b=10.25 c=5.5 a=?
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Trig

05/26/16

I have no idea
If cos ∅=7/25 and Ø is in quadrant IV find CSC ∅ A. 25/7 B. 24/25 C. 25/24 D. -25/24 E. -24/25
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Trig

05/26/16

Sec. Hard.
Evaluate sec 127°
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Trig

05/26/16

Area of sector
Find the area of the sector of the circle of the central angle ∅=320° and radius r=8.9 A. 1424.0 cm^2 B. 24.85 cm^2 C. 12673.6 cm^2 D. 221.20 cm^2 E. None
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Trig

05/26/16

Radians to Degrees
Convert the following from radians to degrees 3(3.14)/4
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Trig

05/26/16

Trig help. So confused
A central angle of 60° is inscribed in a circle with a radius of 7inch. What is the length of the intercepted arch?  A. 8.5 inch B. 420 inch C. 7.33 inch D. .19 inch E. 7 inch
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05/08/16

Solve for the four polar coordinate ordered pairs given the Cartesian coordinates of (6,-10) round to the nearest tenth and use degree measures
Please help this is urgent
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04/27/16

Find tan(2 Theta +pi) using the picture:
You have a right triangle and the hypotenuse is 10 and adjacent side is 6 and the opposite side is 8, this is what the triangle looks like except NO... more
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Trig Triangle

04/25/16

The two shortest sides are 122 ft and 215 ft with a degree of 83 between. How much fencing does Carla need to surround the whole plot?
Help me figure this out
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04/24/16

Solve 4tan^2x-1=tan^2x
Find all solutions between [0,2π), please.
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04/24/16

Simplify [(1+cosx)/(sinx)]+[(sinx)/(1+cosx)]
I can't figure out how to simplify this correctly for my homework. Please help if you can. Thank you.
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Trig

04/19/16

and how far is line B to other side of the river?
An engineer wants to make a bridge across a river. Using a straight line between 2 that are 100ft apart along his side of river. He measures the angles formed when sighting the point on the other... more
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Trig

03/28/16

What was the height of the tree?
A forester measured 200 ft from the base of a tree. She then measured the angle of elevation to the top of the tree at 29 degrees. What was the height of the tree?
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Trig

02/12/16

Tan^2x (csc^2x-1)=1
Verify the identity.
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