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Question 1 - NCERT Exemplar - MCQ - Chapter 8 Class 10 Introduction to Trignometry

Last updated at May 29, 2023 by

The value of (sin 30° + cos 30°) – (sin 60°+ cos 60°) is

(A) – 1  

(B) 0  

(C) 1  

(D) 2

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Question 1 The value of (sin 30° + cos 30°) – (sin 60°+ cos 60°) is (A) – 1 (B) 0 (C) 1 (D) 2 Now, (sin 30° + cos 30°) – (sin 60°+ cos 60°) = (𝟏/𝟐+√𝟑/𝟐)−(√𝟑/𝟐+𝟏/𝟐) = 1/2−1/2+√3/2−√3/2 = 0 So, the correct answer is (B)

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.