Differential equation, square root, curve sketching, substitution.

[STEP II 2018 Question 8 (Pure)]

Curve sketching, polar coordinate, differential equations.

[STEP III 2015 Question 8 (Pure)]

Substitution, first order equation, solution curves, quadratic.

[STEP II 2014 Question 5 (Pure)]

Hyperbolic functions.

[STEP III 2013 Question 7 (Pure)]

Substitution, logarithmic function.

[STEP I 2013 Question 7 (Pure)]

Eigenfunction substitution, exponential function, linearity.

[STEP I 2010 Question 6 (Pure)]

Substitution, transform, general solution, linearity.

[STEP III 2007 Question 8 (Pure)]

Polar coordinates, logarithmic and hyperbolic functions, proof.

[STEP III 2007 Question 5 (Pure)]

General solution, curve sketching, least distance.

[STEP III 2005 Question 2 (Pure)]

First order equation, curve sketching, approximation.

[STEP II 2005 Question 8 (Pure)]