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Int() in this case will refer to integralsAnswer is: f(x)=(1-x^2)/(1+x^2)=(2-(1+x^2)/(1+x^2)=-1+2/(1+x^2)=> Int(f(x))=Int(-1+2/(1+x^2))=Int(-1)+2Int(1/(1+x^2))=-x+2tan^-1(x)+C
495/3 = 165 => £165 worth of £1 coins124 x 0.5 = 62 => £62 worth of 50p coinsWe know the number of coins that are NOT 20p coins. Therefore, we can subt...
253/2= 25(3x 1/2)(251/2)3= (square root of 25)3(5)3= 125
Is it integration or differentiation? Differentiation What rule do we use? Since it's a fraction, use the quotient rule Is the rule in the formula book? Yes Identify what u and v equal too. u = x and v = ...
If a line is a tangent to a circle, it will have exactly one point where the line intersects the circle. Therefore, when we set the equation of the straight line equal to the equation of the circle, we sh...
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