It is the same as: x^2 +2x +1 and it is (x+1)(x+1) when factored
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One plus cosecant squared x is equal to cotangent squared x.
x[x+1] squared Simplified is, to my knowledge, x squared plus ( x + 1) squared
x^2+x^2=2x^2
It is x = 0.
x < 2 or x > 8.