Physics
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What is the probability density at the fifth carbon atom if the electron is in the n=2 energy level?
I have the formula as follows:
Probability density = p5= (2/1.65) sin^2 (4x2pi/11)
I know the final answer is 0.69 nm 1. However, I do not know how to retrieve this final answer using my calculator.. can someone help me please?

I punched it into mine, and it worked.
Is your dRG in radians?
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