Cece Tresno

Prove that $\dfrac{\tan \theta+\cot \theta}{\sec \theta+\operatorname{cosec} \theta}=\dfr… Read more » Miscellaneous Exercise : Proofs of Trigonometric Identities

Basic Trigonometric Identities $\begin{array}{|l|} \hline \sin A=\displaystyle \frac{1}… Read more » Proving Trigonometric Identities : Exercise (10.3) - Solutions

1.        If $ \displaystyle \tan \alpha + \tan \beta = a$, $ \displaystyle \cot \alpha + \cot \b… Read more » Trigonometry : Practice Problems

1.        Use the compound angle formulae to find the following in surd form: (a) sin 105° … Read more » Exercise (11.4) No (1 to 26) - Solution