Advanced Trigonometry – Disguised Quadratics
sin and cos in a disguised quadratic
Quadratic equation disguised using trig functions sin and cos
Advanced Trigonometry – Identities (Compound Angle)
Writing expression as single trig function using tan(A+B)
Advanced Trigonometry – Proofs (Double Angle)
Prove cot(x) + tan(x) = 2cot(2x) using double angle identities
Advanced Trigonometry – Proofs (Identities)
Proof of trigonometric identity 1/(csc(theta)-1) + 1/(csc(theta)+1) = 2 tan(theta)sec(theta)
Advanced Trigonometry – Proofs (Sum/Double Angle)
Trig proof using sum and double angle formulas (Edexel Pure Maths June 2019 Q12)
Advanced Trigonometry – R-Form
Trig – express in the form R sin(2 theta + alpha)
Trig – Express in form R cos(theta + alpha)
Advanced trig: R-form with subsequent solution involving disguised quadratic