- Determine the six
**trigonometric ratios**for angle A in the right triangle. In this tutorial you are shown how to name the sides of any right-angled triangle which is the first stage in solving a question in**trigonometry**. In this tutorial you are shown how the sin, cos and tan**ratios**compare two sides of a right-angled triangle. - 2 days ago ·
**Trigonometry**is the science of relationships between the sides and angles of a right-angled triangle.**Trigonometric****Ratios**:**Ratios**of sides of right triangle are called**trigonometric****ratios**. Consider triangle ABC right-angled at B. These**ratios**are always defined with respect to acute angle ‘A’ or angle ‘C. If one of the**trigonometric**... - 2017. 12. 11. · Page
**1 INTRODUCTION**TO**TRIGONOMETRY 1**) If sin cos , find the value of ' '. 2) If sin A = 5 3, calculate cos A 3) Evaluate: cos 480cos 420 - sin 480 sin 420 4) If A, B and C are the interior angles of a triangle ABC, then show that 2 tan cot B C A. 5) Prove that ecA A A A cos cot**1**cos**1**cos . 6) If 12 13 cosec , evaluate - cos 75o 14 The sum and difference formulas for sine and cosine can also be used for inverse
**trigonometric**functions A**worksheet**for Sine, Cosine, and Tangent ... Displaying top 8**worksheets**found for this concept. Sine, Cosine, and Tangent**Ratios 1**) sin X 32 24 40 X Y Z 2) cos X 10 24 26 X Z Y 3) sin A 24 32 40 A C B 4) sin C 24 7 25 C B A ... - Determine the six
**trigonometric****ratios**for angle A in the right triangle. In this tutorial you are shown how to name the sides of any right-angled triangle which is the first stage in solving a question in trigonometry. In this tutorial you are shown how the sin, cos and tan**ratios**compare two sides of a right-angled triangle.