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A student solved the equation sin2x/cosx=2, 0<=x<=pi and found the answer of pi/2 describe the students error

User SatyaTNV
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For the given equation ⇒⇒⇒
(sin \ 2x)/(cos \ x) =2
and the given range 0 ≤ x ≤ π
We should note that the zeros of the denominator will be at
cos x = 0

x = cos^(-1) 0 = (\pi)/(2)
So, the given equation is undefined at π/2
So, the students error is the division by zero.


See the attached figure which represents the graph of the given equation and we can see it is undefined at π/2


A student solved the equation sin2x/cosx=2, 0<=x<=pi and found the answer of-example-1
User CptDayDreamer
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