Introduction to Trigonometry

Class 10 · Mathematics

77 questions36 easy28 medium13 hard

Sample Questions

Q1.Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°.

  • Acos 23° + sin 15°
  • Bsin 23° + cos 15°
  • Ccos 23° + cos 15°
  • Dsin 23° + sin 15°

Q2.The value of sin 60° / cos 30° is:

  • A0
  • B1
  • C√3
  • D1/2

Q3.The value of sin 90° is:

  • A0
  • B1/2
  • C√3/2
  • D1

Q4.Prove the identity: (1 + tan²A)/(1 + cot²A) = tan²A. LHS simplifies to:

  • Asec²A/cosec²A
  • Bsin²A/cos²A = tan²A
  • CBoth a and b
  • D1

Q5.Evaluate: (sin²25° + sin²65°) / (cos²36° + cos²54°).

  • A0
  • B1
  • C2
  • D1/2

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
Create a test to practice all 77 questions →

Concepts Covered

Complementary anglesReciprocal ratiosStandard angle valuesTrigonometric identitiesTrigonometric ratios

Ready to practice?

Create a timed test from 77 questions in Introduction to Trigonometry. Pick your difficulty, get instant scores.

Start Practice Test