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Proof by contradiction works by working of the assumption a statement is true, then showing it contradicts with a known truth. It's easy to rote learn the main ones required for Maths A Levels (irriationa...
Showing each step of working is important.First, we need to rearrange one of the equations to solve for x or y.If we rearrange the first equation to solve for y in terms of x we get: y = 5 - 2x ( by subtr...
X= 8x+ 35x^6 -3cos(3x)
(a)STEP 1: Take out the coefficient of x^2 from the x^2 and x terms. 2(x)2+7x-3=0 2(x2+(7/2)x)-3=0STEP 2: Complete the Square by finding (b/2)2. ...
suppose you have a general quadratic equation in the form ax2 + bx + c = 0, then the solutions to this quadratic equation can be found by the equation x = (-b +/- (b2-4ac)1/2ASAnswered by Antonia S. • Maths tutor3316 Views
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