622 Answered Questions for the topic Trig

Trig

10/26/17

A pizza delivery driver can see his destination on top of a mountain at an angle of elevation of 23 degrees. if he is 22 miles away from
A pizza delivery driver can see his destination on top of a mountain at an angle of elevation of 23 degrees. if he is 22 miles away from the house, what is the altitude of the house on top of the... more
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Trig Math Trig'

10/24/17

Urgent help needed with alg 2 problem
You are going on a business trip for a manufacturing company to Italy and need to figure out the currency conversion. You are going to take 1500 US dollars. After checking the internet you find the... more
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10/23/17

cos(4theta)-cos(6theta)=0
cos(4θ)-cos(6θ) on the interval 0≤θ<2π
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09/10/17

Trig Substitution
∫(x^2)/((16-x^2)^(3/2))dx   I keep on getting the wrong answer. 
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09/10/17

Trig Substitution
∫(√x^2-81)/(x^4)dx I can't seem to figure out this problem. Please help.
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Trig

09/08/17

What's the refreshed angle for each value.
I'm trying to find the refrence number for each value.    T=4   And    T=7pi
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07/31/17

find the exact values of the expressions without solving for x.
If sin(x) = 1/4 and x is in quadrantI,find the exact values of the expressions without solving for x.   (a) sin(2x) (b) cos(2x) (c) tan(2x)
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07/23/17

identify the asymptotes in the equation, h(x) = 4 sec( π/ 4 (x + 1))
identify the asymptotes in the equation, h(x) = 4 sec( π/ 4 (x + 1)).Enter your answers as a comma-separated list of equations
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Trig

07/15/17

when pi/2<thetha<3pi/4, what can tan of thetha be
can someone please explain why the answer can be -8
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04/26/17

Advanced trig problem I'm having an issue with.
Ok so on a math work sheet we had a problem where there was two side lengths of a triangle, 63 and 91. The third side was only described as being traveled across by a plane with an average of... more
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Trig

04/22/17

Trigonometry
Andreia and Carlos left the airport at the same time. I'm Draya flew at a hundred and ninety miles per hour on a course with a bearing of 80 degrees and Carlos flew at 230 miles per hour on a... more
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04/11/17

7sin^2 theta - 9 cos2 theta = 0
Find the solutions for the equation 7sin^2 theta - 9 cos2 theta = 0 for 0 < or equal to theta < 360 degree. 
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Trig

04/11/17

Trig Help!
A blimp provides aerial television views of a football game. The television camera sights the stadium at a 7° angle of depression. The altitude of the blimp is 400 meters. Which of the following is... more
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Trig Math Ib Maths

04/02/17

A tower has been constructed on the bank of a long straight river. From a bench on the opposite bank and 50 m downstream...
A tower has been constructed on the bank of a long straight river. From a bench on the opposite bank and 50 m downstream from the tower, the angle of elevation of the top of the tower is 30°. From... more
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03/28/17

Prove that these are identities
2cosx - secx = cosx - tanx/cscx
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03/19/17

prove that cosx-cosx sin^2x = cos^3x
 Proving a trig identity and I dont know what to do 
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03/12/17

Advanced Functions Help
the ferris wheel at an amusement park measures 16m in diameter. the wheel does 3 rotations every minute. the bottom of the wheel is 1m above the ground... a) determine the simplest equation that... more
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03/09/17

Proving Trig Identity
I'm having trouble trying to prove this trig identity. Help is greatly appreciated. Thanks in advance. 1/(csc-cot) = (1+cos)/sin
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Trig

02/23/17

Angle of elevation please help
A 5 metre tall sign is placed on top of an office building. From a point on the sidewalk level with the base of the building, the angle of elevation to the top of the sign and the angle of... more
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Trig

01/14/17

Given sin x=24/25, determine all possible values of sin x/2.
Given sin x=24/25, determine all possible values of sin x/2.
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Trig

01/09/17

(2x^2+3x)^2 -4(2x^2+3x)-5
rewrite the expression and find it as four linear factors  
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01/08/17

Solve the following trig equation for the interval [0,2pie]
Tan = -2  
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12/14/16

Are 2tantheta and tan2theta the same thing? If not then how do i plug both into my calculator?
I have a math problem in which I have to prove the identity sin2θ= 2tanθ/1+tan2θ using Double-Angle Identities and I'm trying to figure out how to solve it.
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Trig

12/04/16

Finding the width of a strip.
A rug is to cover 2/3 of the floor area of a 14' by 18' room. The uncovered part of the floor forms a uniform strip around the rug. Find the width of the strip.
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12/03/16

Simple Trig, got lost and need help.
Solve the given equation over the interval [0,2): 2sinx+ (sqrt 3) sin^2x=-(sqrt 3) cos^2x A. x=0, and x=(pi/2), and x=(3 pi/2), and x=2(pi)x=(3 pi/2), and x=(7 pi/2) b. x=(4 pi/3) and x=(5... more
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