Trigonometric Functions (Leaving Cert Mathematics): Flashcards

$1$

$\sec^2\theta$

$\csc^2\theta$

$2\sin\theta\cos\theta$

$2\cos^2\theta - 1$

$-\cos(x) + C$

$\tan\theta - \theta + c$

$-\ln|\cos\theta| + c$ or $\ln|\sec\theta| + c$

Expand $\cos 2x$ in terms of the function

$\frac{1}{2}x - \frac{1}{4}\sin(2x) + c$

$\frac{1}{2}x + \frac{1}{4}\sin(2x) + c$

$\frac{1}{2}\sin 2\theta$