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There are two main methods:Substitution and elimination which can be demonstrated on the white board.

Rearranging gives:4cos(x)-1 = 2sin(x)tan(x) Substituting in tan(x)=sin(x)/cos(x) gives:4cos(x)-1 = 2sin(x)(sin(x)/cos(x))2sin²(x)=4cos²(x)-4cos(x)Substituting in 2sin^2<...

Given a circle in the general form you can complete the square to change it into the standard form.x² + 2gx + y² +2fy +c = 0 (1). General form of an equation which has the completing...

4x-2=6x+3 (-4x)-2=2x+3 (-3)-5=2x (/2)-2.5=x

Find 30 and 60 as products of their prime factors using factor trees: 60 = 2 x 2 x 3 x 5, 30 = 2 x 3 x 5. Use a Venn diagram to represent the prime factors of 30 and 60 with the groups 'prime factors of 3...