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We can take 1 away from all elements to obtain 4 < x² < 9. Now, it's important to notice that when we square a negative, it gives us a positive, so when we take a square root to get 2 < x < 3 ...

First thing to observe here, is that this equation is somewhat different to what you would find normally. This is a complex equation. How can you tell? The third term, ie 32i(sqrt(3)) contains the symbol ...

We want to find the values of x for which this inequality is 0. Let's first fine the values of x for which x²- 7x = -6.Rearranging, x² - 7x + 6 = 0. Now we're looking for the values ...

An action potential is when a neuron sends an electrical signal down an axon, away from the cell body (soma). A stimulus is detected by a motor neuron e.g. through mechanoreceptors that detect touch on th...

PV = nRTP =101 kPa = 101 000 PaV =?T= 298 KR = 8.314 J K^-1mol^-1n = 1.5 molV = nRT / P = 1.5 mol x 8.314 J K^-1 mol^-1 x 298 K / 101 000 Pa = 0.0368 m³<...