Class 11 Math: Trigonometric Functions Important Exam Questions

NexPro Tools Mathematics TeamJune 5, 20266 min read

Preparing for school exams or final CBSE boards requires practicing questions patterned after official grading schemes. We have compiled a list of crucial questions for Class 11 Trigonometric Functions to help you test your mastery.

Exam-Pattern Questions and Answers

Question 1 (EASY)

The equation of straight line passing through the point (-1, 2) and making an angle of 135° with the axis of x is
  • Option 1: x - y = 1
  • Option 2: y + x = -1
  • Option 3: x + y = 1
  • Option 4: -x - y = 0

Solution Explanation & Steps: (c), slope of line m = tan 135° = tan(180° - 45°) = -tan 45° = -1 equation of line passing through (-1, 2) is y - 2 = -1(x + 1) ⇒ y + x = 1

Question 2 (EASY)

The mean of 50 observations is 20 and their standard deviation is 2. The sum of all squares of all the observations is:
  • Option 1: 2020
  • Option 2: 2200
  • Option 3: 20200
  • Option 4: 20020

Solution Explanation & Steps: (c) 20200

Question 3 (EASY)

2lim sec 2 tan 1 4 x xx π - -→ is equal to
  • Option 1: 3
  • Option 2: 1
  • Option 3: 0
  • Option 4: 2

Solution Explanation & Steps: Review standard NCERT class formulas for details.

Grading Step-Marking Guidelines

Remember that teachers award partial marks for writing down formulas, stating the given variables, and drawing diagrams. Never leave a question blank on an exam. Write down the relevant formulas and initial substitution steps to secure partial credits.

📚 Class 11 Math Resource Hub for Trigonometric Functions: • 🧮 Interactive Solver: Solve Trigonometric Functions Problems - Verify steps in real-time. • 📝 Timed Practice Quiz: Take Trigonometric Functions Online Quiz - Test your speed and concepts. • 📄 Printable Worksheet: Download Trigonometric Functions PDF Worksheet - Interactive problems with answers. • 📐 Formula Sheet: View Trigonometric Functions Key Equations - Complete revision references. • 🔄 Next Topic Guide: Complex Numbers and Quadratic Equations Study Notes • 🎓 Syllabus Overview: Class 11 Mathematics Portal - Access all chapter guides.
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