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 Apr22 answered Differentiate problem with respect to x Apr20 answered Algebraic Manipulation Apr19 answered Simple Logarithmic question. Apr17 asked Probability of success in $n$ trials Apr17 asked Solving equations of the form $ae^x + bx +c =0$ Apr14 answered Approximation of the Sine function near $0$ Apr7 asked Why does this work, and why is it wrong? Feb22 asked Series question with unknown limit Jan7 asked Proof that $e^x$ can be expressed in a series of ascending powers of $x$ Dec3 asked Differentiation with the quotient rule Nov11 asked Finding the coefficient of $x^{10}$ Sep21 asked Find the range of values that $x$ can take if $9 \log_x5 = \log_5x$ Sep8 asked Equation with the discriminant Jul29 asked Common logarithm question May20 asked GCSE maths question concerning indices May14 asked Proving the quadratic formula (for dummies) May10 asked The perimeter of the rectangle is $20$, diagonal is $8$ and side is $x$. Show that $x^2-10x+18=0$ Mar9 asked How to show $\frac{300}{v} - \frac{300}{v+20} = 1.25$ Sep22 asked How to calculate $(3+4i)\cdot(1+i)$