Page 1 TRIGONOMETRIC RATIO 1 - In triangle ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine: (a) Sin A, Cos A (b) Sin C, Cos C (a) Sin A, Cos A Solution: AB = 24 cm, BC = 7 cm, AC = ? The value of AC can be calculated by using Pythagoras Theorem: (b) Sin C, Cos C Solution: Page 2 TRIGONOMETRIC RATIO 1 - In triangle ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine: (a) Sin A, Cos A (b) Sin C, Cos C (a) Sin A, Cos A Solution: AB = 24 cm, BC = 7 cm, AC = ? The value of AC can be calculated by using Pythagoras Theorem: (b) Sin C, Cos C Solution: 2 - In the given figure, find tan P - cot R. Solution: Value of QR can be calculated by using Pythagoras theorem: Now; 3 - If ???? ?? ?? = ?? ?? evaluate: Solution: This means, b = 7 and p = 8. We can calculate h by using Pythagoras theorem; Page 3 TRIGONOMETRIC RATIO 1 - In triangle ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine: (a) Sin A, Cos A (b) Sin C, Cos C (a) Sin A, Cos A Solution: AB = 24 cm, BC = 7 cm, AC = ? The value of AC can be calculated by using Pythagoras Theorem: (b) Sin C, Cos C Solution: 2 - In the given figure, find tan P - cot R. Solution: Value of QR can be calculated by using Pythagoras theorem: Now; 3 - If ???? ?? ?? = ?? ?? evaluate: Solution: This means, b = 7 and p = 8. We can calculate h by using Pythagoras theorem; Solution: Solution: 4 - If 3 cot A = 4, check whether or not. Solution: 3 cot A = 4 means ?????? ?? = 4 3 = ?? ?? Hence, p = 3 and b = 4. We can calculate h by using Pythagoras theorem; Page 4 TRIGONOMETRIC RATIO 1 - In triangle ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine: (a) Sin A, Cos A (b) Sin C, Cos C (a) Sin A, Cos A Solution: AB = 24 cm, BC = 7 cm, AC = ? The value of AC can be calculated by using Pythagoras Theorem: (b) Sin C, Cos C Solution: 2 - In the given figure, find tan P - cot R. Solution: Value of QR can be calculated by using Pythagoras theorem: Now; 3 - If ???? ?? ?? = ?? ?? evaluate: Solution: This means, b = 7 and p = 8. We can calculate h by using Pythagoras theorem; Solution: Solution: 4 - If 3 cot A = 4, check whether or not. Solution: 3 cot A = 4 means ?????? ?? = 4 3 = ?? ?? Hence, p = 3 and b = 4. We can calculate h by using Pythagoras theorem; Now; the equation can be checked as follows: LHS: RHS: It is clear that LHS = RHS. Page 5 TRIGONOMETRIC RATIO 1 - In triangle ABC, right-angled at B, AB = 24 cm, BC = 7 cm. Determine: (a) Sin A, Cos A (b) Sin C, Cos C (a) Sin A, Cos A Solution: AB = 24 cm, BC = 7 cm, AC = ? The value of AC can be calculated by using Pythagoras Theorem: (b) Sin C, Cos C Solution: 2 - In the given figure, find tan P - cot R. Solution: Value of QR can be calculated by using Pythagoras theorem: Now; 3 - If ???? ?? ?? = ?? ?? evaluate: Solution: This means, b = 7 and p = 8. We can calculate h by using Pythagoras theorem; Solution: Solution: 4 - If 3 cot A = 4, check whether or not. Solution: 3 cot A = 4 means ?????? ?? = 4 3 = ?? ?? Hence, p = 3 and b = 4. We can calculate h by using Pythagoras theorem; Now; the equation can be checked as follows: LHS: RHS: It is clear that LHS = RHS. TRIGONOMETRIC RATIOS OF SOME SPECIFIC ANGLES 5- Evaluate the following: Solution: Solution: 6 - Choose the correct option and justify your choice: Solution:Read More

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