Subject Answers

Cosine Rule is used:  When the length of all 3 sides of a triangle is given. OR When 2 sides and an included angle is given. (C is an included angle of lin...

Derivative of ln (x) =  1/xGiven (d(ex)/dx=exeln(x)=x using implicit differentiation:y = ln (x)eln(x)=x ey = eln(x)=x,y=ln (x) Differen...

log (1 - x) - log (x) = 1 In this question, quotient rule is used. log (m/n) = log (m) - log (n) Let 1 - x = m, x = n: log (m) - log (n) =...

Prime factorization is a way of expressing a number as a product of its prime factors. A prime number is a number that has exactly two factors, 1 and the number...

In order to find the prime factors, whose product equals 56, we need to break down 56 into its basic components. Always begin with dividing the number by a prim...

In order to understand the differentiation of this function, it is advised to use the Chain Rule. Why Chain Rule? Because Chain Rule allows you to break down th...

The two main methods that you can solve simultaneous equations with two unknowns are:● Algebraically   ○ Substitution Method   ○ Elimination...

 a) As shown in the diagram above, unlike a cube which has all equal sides, a cuboid can have varying lengths for the height, width and length.In order to...

BD= diameter of the circle As shown in the diagram and the question, the square is inscribed inside the circle and we are supposed to find the area of th...

Firstly, we need to define what a recurring decimal and a fraction are. A fraction is an expression in which a number is being divided by another number. T...