Math help

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Angel

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Idk if this is correct place, but it surely is the more fitting (support at least).

f and g are functions of Domain = R defined respectively by

f(x) = 1 - cos(3x) and g(x) = sin(3x)

a is a real number, belonging to the interval ] pi/3 , pi/2 [

consider r and s such as

r is tangent to the f function graphic, in the point of absciss a
s is tangent to the g function graphic, in the point of abciss a + pi/6

It is known that r and s are perpendicular


Prove that sen(3a) = -(1/3)


@Gr4Ss
 

MaXenzie

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Have you tried googling it?
 

MaXenzie

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Google doesn't do math like that lmao?

Usually there's other people that have the same question and asked on yahoo.
 

Angel

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Usually there's other people that have the same question and asked on yahoo.
I doubt people asked this exact problem, since it comes from an exam from last year.
 
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