Asked by Jim
Convert the equation to polar form.
8x=8y
So far, I got this: 8*rcosθ = 8*rsinθ
But it's wrong.
8x=8y
So far, I got this: 8*rcosθ = 8*rsinθ
But it's wrong.
Answers
Answered by
Ms. Dale
Please recheck, and check once more with a calculator. Come back to me if it is still incorrect. Remember, I will check your answers and help you, but I shall not give away the answer. Good day Jim.
Answered by
Reiny
8cosθ = 8sinθ is ok
then:
cosθ = sinθ
sinθ/cosθ = 1
tanθ = 1
θ = π/4
so our equation would simply be
<b>θ = π/4</b>
we have a similar situation for a vertical line in our x-y system
a vertical line would have the form x = k , no mention is made of the y, since the y
can be any value.
Similarly here, by saying θ = π/4 , we say that r can be any length as long
as our angle is 45°. That will give us the straight line y = x
then:
cosθ = sinθ
sinθ/cosθ = 1
tanθ = 1
θ = π/4
so our equation would simply be
<b>θ = π/4</b>
we have a similar situation for a vertical line in our x-y system
a vertical line would have the form x = k , no mention is made of the y, since the y
can be any value.
Similarly here, by saying θ = π/4 , we say that r can be any length as long
as our angle is 45°. That will give us the straight line y = x
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