SOLUTION: I'm not exactly sure on how to start this problem. Thank you in advance for your help!!
find the acute angle of rotation x that eliminates the xy term of 2x^2 + sqrt3*xy + y^2 - 8
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-> SOLUTION: I'm not exactly sure on how to start this problem. Thank you in advance for your help!!
find the acute angle of rotation x that eliminates the xy term of 2x^2 + sqrt3*xy + y^2 - 8
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Question 860522: I'm not exactly sure on how to start this problem. Thank you in advance for your help!!
find the acute angle of rotation x that eliminates the xy term of 2x^2 + sqrt3*xy + y^2 - 8 = 0
a-28.1 degrees
b-30
c-45
d-60 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! find the acute angle of rotation x that eliminates the xy term of
2x^2 + sqrt3*xy + y^2 - 8 = 0
A = 2 ; B = sqrt(3) ; C = 1
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cot(2t) = (A-C)/B = (2-1)/sqrt(3) = 1/sqrt(3)
tan(2t) = sqrt(3)
2t = 60 degrees
t = 30 degrees
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Answer: b
Cheers,
Stan H.
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a-28.1 degrees
b-30
c-45
d-60
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