Introduction to Trigonometry: Class 10 Mathematics (CBSE) important questions and practice
Introduction to Trigonometry is chapter 8 of 14 in CBSE Class 10 Mathematics. Below are the topics the paper draws from, the question types that come up again and again, and a free practice test on this chapter alone.
Topics in this chapter
- Trigonometric ratios in a right triangle
- Ratios of specific angles 0, 30, 45, 60, 90 degrees
- Trigonometric identities: sin^2 + cos^2 = 1, 1 + tan^2 = sec^2, 1 + cot^2 = cosec^2
- Proving identities
- Evaluating expressions using standard values
What examiners usually ask
- Prove that (sin A + cosec A)^2 + (cos A + sec A)^2 = 7 + tan^2 A + cot^2 A
- If tan A = 3/4, find the other trigonometric ratios of A
- Evaluate 2 tan^2 45 + cos^2 30 - sin^2 60
Exam tip
Start identity proofs from the more complicated side and convert everything to sin and cos; memorise the table of standard values because at least one evaluation question is set from it every year.
Introduction to Trigonometry on other boards and exams
Frequently asked questions
What are the important questions from Introduction to Trigonometry for CBSE Class 10?
The question types listed above repeat most often in CBSE Class 10 Mathematics papers for this chapter. Practise them with the chapter test and then attempt them inside a full previous-year paper under time.
Is Introduction to Trigonometry in the CBSE Class 10 Mathematics syllabus?
Yes. Introduction to Trigonometry is part of the current CBSE Class 10 Mathematics syllabus, as listed on this site from the prescribed textbook.
Can I practise Introduction to Trigonometry MCQs in Hindi?
Yes. The chapter test and explanations are available in Hindi and English, with an AI doubt solver for any question.