Unit 13 · Class 9 IB MYP · Formula Sheet

Exact Trigonometric Values Formulas — Class 9 IB MYP

Calculate exact values of sin, cos, tan for standard angles (30, 45, 60 degrees).

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Worked Examples

1Using: sin 30

Find sin 30 + cos 60.

Step 1: sin 30 = 1/2, cos 60 = 1/2.

Step 2: Sum = 1/2 + 1/2 = 1.

Answer: 1

2Using: tan identity

If tan A = 3/4, find sin A.

Step 1: In right triangle: opposite = 3, adjacent = 4.

Step 2: hypotenuse = 5. sin A = 3/5.

Answer: 3/5

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More Class 9 IB MYP Formulas

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Frequently Asked Questions

How many formulas are in Class 9 IB MYP Exact Trigonometric Values?+
There are several key formulas in the Exact Trigonometric Values chapter for Class 9 IB MYP. Each formula is essential for solving problems in this topic.
How to remember Exact Trigonometric Values formulas easily?+
Practice regularly with worked examples, group related formulas together, and use SparkEd's interactive practice mode to reinforce your memory through problem-solving.
Are these Exact Trigonometric Values formulas enough for exams?+
Yes, these formulas cover the complete IB MYP Class 9 syllabus for Exact Trigonometric Values. Practice applying them to different types of questions for full exam readiness.

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