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I'm having some problems trying to work this word problem any and all help is greatly appreciated. The angle of elevation from the top of a house to a jet flying 2 miles above the house is x radians. If d represents the horizontal distance, in miles, of the jet from the house, express d in terms of a trigonometric function of x. Thanks

2007-06-21 09:42:32 · 3 answers · asked by s a 2 in Education & Reference Homework Help

3 answers

I'm assuming the altitude of the jet above the house is 2 miles

tangent = side opposite/side adjacent

tan x = 2/d

d = 2/(tan x)

x = arc tan 2/d
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2007-06-21 09:53:48 · answer #1 · answered by Robert L 7 · 0 0

the only which potential to angles equivalent to or greater effective than 2*pi in radians is they correspond to a minimum of a variety of of finished turns of perspective around the muse. with a view to get the perspective in between the 1st 4 quadrants of turning that has a similar trigonometric function, in simple terms subtract the optimal form of intger multiples of two*pi = a million turn from the perspective which will circulate away a the rest this is constructive and smaller than 2*pi radians. this means that any perspective subtracted away could desire to be a great huge form diverse of pi. occasion: sin(17*pi/2) = sin(8.5*pi) = sin(0.5*pi) , because of the fact 8*pi is 4*(2*pi), so subtract out the 8*pi from the 8*pi. occasion: cos(19*pi/4) = cos(4.seventy 5*pi) = cos(0.seventy 5*pi) = cos(3*pi/4) the three*pi/4 is interior the 2nd quadrant, because of the fact this is larger than pi/2 yet smaller than a million*pi. you may desire to be waiting to make certain your expression actual from this education.

2016-11-07 03:43:53 · answer #2 · answered by Anonymous · 0 0

Tangent of angle x = 2miles divided by d
or
d = tangent of angle x divided by 2miles

2007-06-21 10:12:06 · answer #3 · answered by MichaelOB454 1 · 0 0

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