Reciprocal Trigonometric Ratios

The reciprocal trigonometric ratios are cosecant, secant, and cotangent, the reciprocals of sine, cosine, and tangent: $\csc\theta=\frac{1}{\sin\theta}$, $\sec\theta=\frac{1}{\cos\theta}$, and $\cot\theta=\frac{1}{\tan\theta}$. They extend the three basic ratios and appear throughout trigonometric identities and equations.

You meet Reciprocal Trigonometric Ratios in the Trigonometric Functions chapter of SPM Additional Mathematics. Knowing the term precisely matters in the exam: questions often hinge on reading a keyword correctly, and because SPM marking is analytic, using the right definition in your working helps secure method marks.

Our teachers make sure a student can not only recite what Reciprocal Trigonometric Ratios means but use it fluently in a full solution.

Because the SPM Add Math paper is bilingual (BM/EN), it helps to know this term in each language: Reciprocal Trigonometric Ratios (EN) · Nisbah Trigonometri Salingan (BM) · 倒数三角比 (中文)

Other key terms from the Trigonometric Functions chapter you may want to check:

• Reference Angle
• Amplitude
• Period
• Trigonometric Identity
• Addition Formula
• Double Angle Formula