Question 9 - CBSE Class 10 Sample Paper for 2026 Boards - Maths Standard - Solutions of Sample Papers for Class 10 Boards

Last updated at September 5, 2025 by Teachoo

[MCQ Class 10] If 2sin5𝑥 = √3 ,0˚≤ 𝑥 ≤ 90˚ , then 𝑥 is equal to - CBSE Class 10 Sample Paper for 2026 Boards - Maths Standard

part 2 - Question 9 - CBSE Class 10 Sample Paper for 2026 Boards - Maths Standard - Solutions of Sample Papers for Class 10 Boards - Class 10

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Transcript

Question 9 If 2sin 5𝑥=√3,0^∘≤𝑥≤90^∘, then 𝑥 is equal to (A) 10^∘ (B) 12^∘ (C) 20^∘ (D) 50^∘Now, 2 sin 5𝑥=√3 sin 5𝑥=√3/2 Since 𝑠𝑖𝑛 60°=√3/2 𝐬𝐢𝐧 𝟓𝒙=𝐬𝐢𝐧⁡〖𝟔𝟎° 〗 Comparing angles 5x = 60° x = (60° )/5 x = 12° So, correct answer is (d)

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 15 years. He provides courses for Maths, Science and Computer Science at Teachoo

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