Trigonometric identity, general solution of trig equations.

[STEP I 2005 Question 4 (Pure)]

Identities, proof, counterexample, general solutions to trigonometric equations.

[STEP III 2004 Question 5 (Pure)]

Identity, inverse trigonometric functions.

[STEP II 2003 Question 2 (Pure)]

If and only if, general solution to trigonometric equations.

[STEP I 2003 Question 3 (Pure)]

Sum, arctan, identity.

[STEP III 2002 Question 2 (Pure)]

Quadratic equation, sine, inequality, determinant, logarithmic function.

[STEP II 2002 Question 4 (Pure)]

Roots of equation, identity.

[STEP II 2001 Question 4 (Pure)]

Solution of equations.

[STEP I 2001 Question 4 (Pure)]

Solutions of trigonometric equation, inequality.

[STEP II 1999 Question 5 (Pure)]

Trigonometric identity, solution of equations, rational, inequality.

[STEP II 1997 Question 6 (Pure)]