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When time is sparse, the best way to distinguish what the source is telling us to read it once and pick out three seperate lines from it.

After doing this, look at each one and describe w...

first notice the integral is in the form f'(x)/f(x), and indefinite integrals of this form are ln|f(x)|+c.
therefore the integral is [ln|x⁴+x|] between limits 1 and 2.
subbing in li...

Balancing chemical equations can seem tricky at first, especially when starting out. But by following an order it becomes a quick and easy task.

For the sake of this question, we'll balance th...

There are two postulates of special relativity:

1. The laws of physics are invariant in all inertial frames of reference.

What ...

All we need to do here is find the values of x that make each bracket zero.So2x-4=02x=4x=2andx+1=0x=-1