I see three fractions, having denominators of x, x and x².  Is that the correct interpretation?

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You are first setting the calculator to either radians or degrees before evaluating sinh(1), are you?  

(2Pi - x) + (Pi + x) = 3Pi  

First, the integral of 5 with respect to x is 5x

Next, you evaluate this 5x at x=5 and at x=0

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To find half of 34  »»»  

 2   1/x   x  34   =

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To find tan² you first find tan, then you square that.  

tan² 30° = (tan 30°)x(tan 30°)

Mathematicians are not big dart players, nor target shooters. 

You'd better describe exactly how the widths of the point areas are related. What about the diameter of the bullseye?

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Standard form? Do you by any chance mean standard deviation?

Otherwise, please give some context in which your standard form is used.

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Are these spurious 6s supposed to be angle symbols, viz., should it read:

If ∠DAE = ∠DFE, what is ....

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You started off correctly, Guest, but series impedances don't add algebraically, they add according to Pythagoras.

So impedance Z = [(X_L )² + R² ]^½

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You are a bit loose with your equals signs there, Guest!  😱

Take care to ensure equals always means equals!!

It can be fixed with  % sign after the 100

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Is this in the context of the physics of ideal gases?

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 It operates on an ordered listing, such as integers or alphabet letters. 

 So succ(4) is 5 

 succ(B) is C