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Mathematics - Trigonometric Equations

Practise 22 WBJEE previous year questions on Trigonometric Equations, compiled from papers spanning 2009 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty WBJEE tests.

Trigonometric Equations has been asked in 12 of the 18 years of WBJEE papers analysed (2009–2026), with 22 questions in all. 14% of them were easy, 68% moderate and 18% tough. Most of its questions came from 2015, with 6 questions that year. In the last three years (2024–2026) it had 5 questions across 3 papers, about 1.7 per paper.

The chapter's 2 topics are not weighted equally: Solving Trigonometric Equation (21 questions, 95%) and Solving Trigonometric Inequalities (1 question, 5%) have been asked the most. Solving Trigonometric Equation has also led over the last five years, with 6 questions. Solving Trigonometric Equation has produced the most tough questions (4).

  1. 1The general solution of the equation is2026Solving Trigonometric Equation
  2. 2The solution set of the equation is2025Solving Trigonometric Equation
  3. 3If the equation has a solution, the must lie in the interval2025Solving Trigonometric Equation
  4. 4If and , then if where2024Solving Trigonometric Equation
  5. 5If and are acute angles such that and , then2024Solving Trigonometric Equation
  6. 6If \( {1}{6} , , \) are in G.P., then the solution set of \( \) is2023Solving Trigonometric Equation
  7. 7If , then general value of is2018Solving Trigonometric Equation
  8. 8The equation has real solutions, where k is a real number. Then,2017Solving Trigonometric Equation
  9. 9If then the value of is2015Solving Trigonometric Equation
  10. 10The number of real solutions of the equation is2015Solving Trigonometric Equation
  11. 11is equal to2015Solving Trigonometric Equation
  12. 12The trigonometric equation has a real solution, if2015Solving Trigonometric Equation
  13. 13Let and be iwo distinct roots of where are three real constants and . Then, is also a root of the same equation, if2015Solving Trigonometric Equation
  14. 14Which of the following statements is /are correct for2015Solving Trigonometric Inequalities
  15. 15The value of is2014Solving Trigonometric Equation
  16. 16Preview not available - open to view this question.2014Solving Trigonometric Equation
  17. 17Number of solutions of the equation is2012Solving Trigonometric Equation
  18. 18The number of solutions of \(2 x+ x=3\) is2011Solving Trigonometric Equation
  19. 19If then the general value of is2010Solving Trigonometric Equation
  20. 20General solution of is2009Solving Trigonometric Equation
  21. 21If , when , then the values of are :2009Solving Trigonometric Equation
  22. 22The equation has2009Solving Trigonometric Equation

Frequently Asked Questions

1.How many questions are available for Trigonometric Equations?

This chapter includes 22 questions compiled from WBJEE papers spanning 2009 to 2026.

2.Are these questions only from WBJEE, or from other exams too?

These are WBJEE questions specifically for the Trigonometric Equations chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Trigonometric Equations an important chapter for WBJEE Mathematics?

Trigonometric Equations has appeared in 12 of the 18 years of WBJEE papers covered here, with 22 questions across 12 papers - about 2 per paper it appears in.

4.What is the difficulty level of Trigonometric Equations questions in WBJEE?

Of the 22 questions analysed for this chapter, 14% are easy, 68% moderate and 18% tough. 2015 had the most, with 6 questions.

5.Which topics in Trigonometric Equations should I focus on?

These topics have carried the most weightage in Trigonometric Equations:

  • Solving Trigonometric Equation - 21 questions (95%)
  • Solving Trigonometric Inequalities - 1 question (5%)
  • Solving Trigonometric Equation has produced the most tough questions (4).
6.Is Trigonometric Equations's weightage in WBJEE going up or down?

Across all 12 papers analysed, Trigonometric Equations has averaged about 1.8 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 1.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.