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All complex numbers are in the form a+bi where a is the real part of the complex number and b is the imaginary part. Therefore if we are plotting the complex number on argand diagram the value of a tells us ...

Remember the rule for integrating is that x^n integrates to x n+1 /(n+1). Here, n = 2 so n+1 = 3. Therefore the integral will be (x 3 )/3. Remember that as the integral has is indefinite- it has no limits- y...

I have a PhD in Philosophical Theology, so am well equipped to help with all major areas of the erstern philosophical tradition, Christian doctrinal history, philosophy of religion, and of course, philosophi...

A quadratic equation "ax 2 +bx+c=0" can have 0, 1 or 2 solution. This depends on the discriminant which is (b 2 - 4ac) If the discriminant is positive, then there are 2 solutions If it equals 0, th...

Example question: Solving Simultaneous Equations Equation 1: 6x + 2y = 2 Equation 2: 5x - 7y = 6. Find x and y. 1) Check is if it is possible to solve. Here we have 2 unknowns, x and y, and 2 equations, ther...