622 Answered Questions for the topic Trig

11/30/16

Need help with simple Trig!
Provide an exact evaluation of the expression: tan (-285°).
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11/30/16

Need Urgent Trig Help!!
Find the value for sin (θ) if the following conditions hold: cos(2(theta)) = 3/5 and 90(degrees) < (theta) < 180(degrees) A. (1/25) B. (sqrt5/25) C. (2 sqrt5/5) D. (sqrt5/5)
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11/07/16

What is the distance from the shark to the beach
Mr. Fandale is sitting on his surfboard 220 feet from a lifeguard on shore. A shark is swimming towards him and 106 feet away. The angle that Mr. Fandale makes between the shark and the lifeguard... more
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11/06/16

Find the area of triangle. A = 30.2°, b = 14.6 in., c = 6.8 in.
 Find the area of triangle.A = 30.2°, b = 14.6 in., c = 6.8 in.
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Trig

11/02/16

Trigonometry identity
Tan x (cos x + cot x) = sin x + 1 Determine if identity
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Trig

09/29/16

Trig vertical shifts
I'm using an online school and the answers are very sensitive, so I'm unsure if I'm doing the problem wrong, or I'm entering something wrong.  Sine function Amp.- sqrt (2) Period- 8pI Horiz.... more
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09/25/16

Limit at infinity with cot and tan
limx-->positive infinity tan ( x/x^2+1)    limx--> negative infinity cot ( pix/4x+1)    This is so confusing for me, i would lice a detailed step by step. 
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09/18/16

Solve for y?
2x+5y=10 with an explanation
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Trig

09/18/16

i need help on this question?
y^2=x^2-25 i have to solve for y
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Trig

09/11/16

Vertical asyptotes for y=cscx?
Is it pi•n ( n is any integer) 
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09/11/16

Sketching a graph of secx on an interval
When making a graph for secx on interval [ (-pi/(2) , (3pi)/(2) ] how do I know the numbers in between these two to put on the x axis?
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Trig

08/14/16

One plane going a distance at two different speeds, how long of each speed?
A 555-mile, 5-hour plane trip was flown at two speeds. For the first part of the trip, the average speed was 105mph. Then the tailwind picked up, and the remainder of the trip was flown at an... more
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Trig Algebra 2 Sat

08/04/16

Trig Help???
1. The graph of f(x)=abx with a > 0 and b > 0 has initial value ______.
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Trig

07/31/16

The equation r = 7(sintheta) represents a circle. Find the cartesian coordinates of the center: x=?, y=?, r=?
please help
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Trig

07/31/16

Find the distance between the points with polar coordinates (1,pi/6) and (3,3pi/4).
please help
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Trig

07/30/16

sec(4theta + 8 degrees) cos(6 theta + 2 degrees) = 1 find the least possible value of theta
sec is 1/cos, so when you multiply them together do they cancel out and leave a quadratic equation for theta? (4theta + 8) x (6theta +2) = 1 ?
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Trig

07/27/16

Write the complex number z=(1-sqrt3i)^14 in polar form: z=r(costheta+i sin theta) where r = and theta =
Please help ME
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Trig

07/27/16

Evaluate the expression 3+10i/-8+6i, and write your answer in the form a+bi. a = and b = .
Please Help Me
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Trig

07/27/16

(1/4+1/7i)-(1/6+7/2i)
Please Help Me
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Trig

07/26/16

Suppose u=5,0 and v=5,0 . Then: u+v = u-v = v-u = 6u = -21v = 2u-7v =

Please Help Me
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Trig

07/26/16

Consider the vector v?? between (0.7,2) and (-0.3,1.9). The vector v?? is . The length of v?? is . If the tail of v?? is at (-4.6,2.8), then the tip is at .
Please Help Me
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Trig

07/26/16

Find ab if a=8, b=1, and the angle between a and b is pi/6 .
help me please
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Trig

07/25/16

How to solve these two trig equations
a) tan2 x + tanx =0 b) 2cos2 x—3cosx +1=0
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07/25/16

Sinusoidal function
Two Ferris wheels are rotating side by side at the Math Fair. The first Ferris wheel has a radius of 7m and makes one complete revolution every 16s. The bottom of the wheel is 1.5m above the... more
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Trig

07/23/16

Trig equations. How do I found where the point 1/3 is on unit circle
The equation is tan(thetha)= 1/3 . [0,360)degrees   How am I supposed to know how to find the angle? Is there some equation to do? I know the unit circle by heart so its what im using, but it... more
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