Trigonometry

This chapter introduces trigonometric ratios. It discusses the notation of angles and briefs us on various trigonometric ratios. With the aid of examples, it also explains the quotient relations and includes some practice questions.

This chapter discusses trigonometrical ratios of standard angles and complementary angles. It explains the trigonometric ratios of 0, 30, 45, 60 and 90 degrees. Evaluation of trigonometrical expressions involving trigonometric ratios is also covered.