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Since we know that the line crosses the x axis, we can assume that the value of Y at this point is 0. So we must substitute y = 0 into the equation y = 2x + 40 = 2x + 4we now have to isolate x on its own ...

x = π/6, 5π/6, π/2

The important thing to remember when rearranging equations is whatever you do to one side must be balanced with the other.1) So in this case, the first thing we want to do is to leave the term with A in i...

First you must differentiate the given equation. This give you 20-2x-6x². Since we are told that one of the stationary points is at x=-2, this is one of the factors of the differential equation...

It all comes down to the how e is defined. e=1+(1/1!)+(1/2!)+(1/3!) all the way up to (1/infinity). e^x is equal to 1 + (x/1!)+((x^2)/2!)+((x^3/3!)) and again continues on to ((x^infinite)/factorial of in...