622 Answered Questions for the topic Trig

Trig

01/25/16

How do you solve tan(x)sec(x)=tan (x)?
This is a trigonometry identity equation. 
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Trig

01/25/16

How do you solve sin(x)cot(x)=0?
This is a trigonometry identity equation. 
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Trig

01/25/16

How do you solve 2cos^2x-1=0?
This is a trigonometry identity equation. 
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Trig

01/25/16

How do you solve 4cos (x-1)=3?
This is a trigonometry identity equation. 
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01/10/16

If the domain of f(x)=2x+3 is {-3<x=0}, which number is NOT in the range?
A) -1 B) 1 C) 0 D) 3   Please explain :( Thank you
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12/21/15

Please prove that cot A + cot B + cot C = (a^2 + b^2 + c^2)/(4(area of triangle ABC)).
I need help with this proof. Please help me. 
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12/20/15

In ?PQR, q = 45 cm, ?Q=117° and ?R=18°. Find the length of p, to the nearest 10th of a centimeter.
In ΔPQR, q = 45 cm, ∠Q=117° and ∠R=18°. Find the length of p, to the nearest 10th of a centimeter.
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12/20/15

If cosB=1/9, then what is the positive value of cos1/2B, in simplest radical form with a rational denominator?
If cosB=1/9, then what is the positive value of cos1/2B, in simplest radical form with a rational denominator?
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12/20/15

Two sides of a parallelogram are 14 feet and 15 feet.
Two sides of a parallelogram are 14 feet and 15 feet. The measure of the angle between these sides is 95°. Find the area of the parallelogram to the nearest square foot.
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12/20/15

Two sides of a parallelogram are 1.2 feet and 2.3 feet.
Two sides of a parallelogram are 1.2 feet and 2.3 feet. The measure of the angle between these sides is 29°. Find the area of the parallelogram to the nearest 10th of a square foot.
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12/19/15

Two sides of a parallelogram are 8.3 feet and 8.2 feet. The measure of the angle
Two sides of a parallelogram are 8.3 feet and 8.2 feet. The measure of the angle between these sides is 84°. Find the area of the parallelogram to the nearest 10th of a square foot.
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11/15/15

Hi. Please help me solve this question.
1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
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11/15/15

Hi. Please help me with the following mathematical equations.
1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
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11/14/15

Hi. Please help me with the following mathematical question.
1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
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09/10/15

If sin(theta)= 2root5 over five and pie over 2 <theta<pie what is cos(theta)?
I have no idea where to even start on this problem.  I know it is asking for cosine(x) and I know my unit circle well, I just don't know what to do.  
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08/28/15

Calculate the angular speed of the 26-inch bicycle rotating at 200 revolutions per minute. Express your answer in radians per minute. Use p = 3.14.
I am desperate
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07/20/15

find the solutions of the equation
Find the solutions of the equation that are in the interval [0, 2π). (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)cos COS[2X-(pi/3)]=0  given this... more
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06/22/15

for a given right triangle angle b=46ft and side c=30ft what is the measure of angle A to the nearest degree
trigonomatry:for a given right triangle angle b=46ft and side c=30ft what is the measure of angle A to the nearest degree
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06/08/15

Sonic boom trig question
The US Air Force was running maneuvers with the F22 Raptor, flying low enough so that you could see the shock cone created as the jet flies overhead at supersonic speeds. You wanted to take a video... more
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Trig

06/04/15

find the value for theta in the interval pi less than or equal to theta less than or equal to 2 pie that satisfies the equation 3 tan theta - square root 3
Find a value for theta in the interval pi lessthan or equal too theta lessthan or equal too 2 pI that satisfies the equation 3tan-60=0
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05/20/15

you deposit $1000 in an account at 5% interest compounded continuously how long will it take to double
you deposit $1000 in an account at 5% interest compounded continuously how long will it take to double your money  
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Trig

05/18/15

a 37 foot tree casts a 27 foot shadow. what is the angle of elevation of the sun?
Its a trig applications problem. and its a world story.
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04/30/15

if tan0=5/8 and 0 is in the third quadrant, what are the five other remaining trig functions of 0
i need help with this, someone help me
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Trig

04/28/15

Square roots
3tan^2x-2=csc^2x-cot^2x 0<x<Pi 
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Trig

04/28/15

Combining like terms
Sinx-cot^2x=1  0<x<2pi   I'm having trouble with this problem.
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