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

Last updated at July 25, 2026 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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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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