Chapter 3: Trigonometric Functions
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Syllabus Sections
Print-Ready Math Worksheet
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Worksheet Details:
- • Title: Class XI Math: Trigonometric Functions Printable Sheet
- • Format: Print Optimized CSS stylesheet
- • Sections: Formulas checklist, 5 assessment questions, worked keys
NexPro Education Worksheet
Class XI Mathematics: Trigonometric Functions
Section I: Key Formulas
Section II: Answer the Questions
1. If cos 1 sin xy x= + , then find dy dx .
2. Prove the following : sin 10° + sin 20° + sin 40° + sin 50° = sin 70° + sin 80°.
3. Prove the following identity: tan 13A - tan 7A - tan 6A = tan 13A tan 7A tan 6A
4. If x + iy = a ib c id + + , prove that (x2 + y2)2 = 2 2 2 2 a b c d + + .
5. Show that the points A(1, 2, 3), B(-1, -2, - 1), C(2, 3, 2) and D(4, 7, 6) are the vertices of a parallelogram ABCD, but it is not a rectangle.
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