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The multi-store model of memory (Atkinson and Shiffrin, 1968) suggests that information from the environment initially enters sensory memory, which includes senses such as vision and hearing. If this info...

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 ...