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Firstly, it is important to know the difference between scalars and vectors. Scalars are just a number associated with a measured quantity, while vectors are a number AND a direction associated with a qu...

Observing animal species with exaggerated ornaments and weapons that do not seem of importance in the animal’s struggle for survival, Darwin created the concept of sexual selection to account for the evol...

Don't be daunted. Unseen questions are there to test your close-reading rather than memory skills. This can be scary but it is also reassuring as you have everything you need in front of you to answer the...

Since we need to find dy/dx, we must first differentiate the equation implicitly which gives us: 8x - 3y²dy/dx - 4y - 4xdy/dx + 2^yln(2)dy/dx = 0. Because we are given a point, we can...

To find the point(s) where these two lines intersect we will first find the x coordinate of the point(s) where they intersect snd use this to find the corresponding y coordinate by substituting the x valu...