Class 10
Solutions of Sample Papers for Class 10 Boards

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

Last updated at Aug. 20, 2025 by

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Question 9 If 2sin 5๐‘ฅ=โˆš3,0^โˆ˜โ‰ค๐‘ฅโ‰ค90^โˆ˜, then ๐‘ฅ is equal to (A) 10^โˆ˜ (B) 12^โˆ˜ (C) 20^โˆ˜ (D) 50^โˆ˜Now, 2 sin 5๐‘ฅ=โˆš3 sin 5๐‘ฅ=โˆš3/2 Since ๐‘ ๐‘–๐‘› 60ยฐ=โˆš3/2 ๐ฌ๐ข๐ง ๐Ÿ“๐’™=๐ฌ๐ข๐งโกใ€–๐Ÿ”๐ŸŽยฐ ใ€— Comparing angles 5x = 60ยฐ x = (60ยฐ )/5 x = 12ยฐ 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