(a(i))[1]
Evaluate $2a - b$ when $a = 3$ and $b = -7$.
(a(ii))[1]
Evaluate $a^2 + b^2$ when $a = 3$ and $b = -7$.
(b)[2]
Given $A = 2r^2 + 5$, rearrange the formula so that $r$ becomes the subject.
Mathematics 4024 · O Level · Algebraic manipulation
Mathematics 4024 · O Level · Algebraic manipulation
Evaluate $2a - b$ when $a = 3$ and $b = -7$.
Evaluate $a^2 + b^2$ when $a = 3$ and $b = -7$.
Given $A = 2r^2 + 5$, rearrange the formula so that $r$ becomes the subject.