Yes, you can expect questions from trigonometry in the mathematics section of the JEE Advanced exam.

Trigonometry is an important topic in the JEE Advanced mathematics syllabus and typically has a significant weightage in the exam. It is essential for students to have a strong understanding of trigonometric concepts and their applications in order to perform well in this section.

Key Concepts in Trigonometry:
- Trigonometric Ratios: The sine, cosine, tangent, cosecant, secant, and cotangent ratios are fundamental concepts in trigonometry. Students should be familiar with these ratios and their properties.
- Trigonometric Functions: The trigonometric functions, such as sine, cosine, and tangent, are widely used in various mathematical problems. Understanding the graphs, properties, and inverse functions of these trigonometric functions is crucial.
- Trigonometric Identities: Trigonometric identities are equations involving trigonometric functions. Students should be well-versed in the various trigonometric identities, such as Pythagorean identities, sum and difference identities, double angle identities, and half-angle identities.
- Trigonometric Equations: Solving trigonometric equations is an important skill. Students should be able to solve equations involving trigonometric functions and understand the concept of periodicity.
- Heights and Distances: Trigonometry is often used to solve problems related to heights and distances. Students should be comfortable applying trigonometric concepts to solve such problems.
- Trigonometric Limits: Understanding the limits of trigonometric functions is important for solving problems involving calculus and continuity.

Importance in the JEE Advanced Exam:
Trigonometry questions in the JEE Advanced exam can range from basic concepts to complex problem-solving. It is important to have a thorough understanding of trigonometry as it is not only tested in the dedicated trigonometry section but also in other topics like coordinate geometry and calculus. Trigonometry questions in the JEE Advanced exam may require application of trigonometric identities, solving trigonometric equations, finding values of trigonometric functions, and applying trigonometry in real-life situations.

Tips to Prepare for Trigonometry:
- Understand the basic concepts and definitions of trigonometry.
- Practice solving a variety of problems from textbooks, previous year question papers, and online platforms like EduRev.
- Memorize the important trigonometric identities and formulas.
- Develop a strong foundation in trigonometry by practicing regularly and understanding the concepts intuitively.
- Solve mock tests and analyze your performance to identify areas of improvement.
- Seek help from teachers, mentors, or online platforms if you face difficulties in understanding any trigonometric concept.

In conclusion, trigonometry is an important topic in the mathematics section of the JEE Advanced exam. By understanding the key concepts, practicing regularly, and solving a variety of problems, you can improve your performance in this section and increase your chances of scoring well in the exam.