Trigonometric ratios of specific anglesPractice Questions & MCQs
Practice Trigonometric ratios of specific angles questions from Introduction to Trigonometry (Class 10 Maths) - important MCQs with answers and step-by-step solutions. Solve the sample questions below, then practice the full set free on the RankByte app.
Trigonometric ratios of specific anglesQuiz - Solve & Score
Q1. The value of sin 30 is:
- A.1/sqrt2
- B.1/2
- C.1
- D.sqrt3/2
Answer: B. 1/2
Given 30, asked for the unknown. By sin30 = 1/2. sin30 = 1/2. So option B) 1/2. Others fail: option A) '1/sqrt2' is incorrect: That is sin45; option C) '1' doesn't hold - sin90 = 1.
Q2. The value of tan 90 is:
- A.undefined
- B.1
- C.0
- D.infinity is loosely said but it is undefined
Answer: A. undefined
Q3. The value of sin 30 is (NCERT):
- A.1/sqrt2
- B.1/2
- C.1
- D.sqrt3/2
Answer: B. 1/2
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