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[MCQ] If tan πœƒ = 5/2 then (4 sin πœƒ + cos πœƒ) / (4 sinπœƒ βˆ’ cosπœƒ) is - CBSE Class 10 Sample Paper for 2025 Boards - Maths Standard

part 2 - Question 6 - CBSE Class 10 Sample Paper for 2025 Boards - Maths Standard - Solutions of Sample Papers for Class 10 Boards - Class 10

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Question 6 If tanβ‘πœƒ=5/2 then (4 sinβ‘πœƒ+ cosβ‘πœƒ)/(4 sinβ‘πœƒβˆ’ cosβ‘πœƒ) is equal to (A) 11/9 (B) 3/2 (C) 9/11 (D) 4Given tan ΞΈ = πŸ“/𝟐 Now, (4 sinβ‘γ€–πœƒ + cosβ‘πœƒ γ€—)/(4 sinβ‘γ€–πœƒ βˆ’ cosβ‘πœƒ γ€— ) Dividing numerator and denominator by cos ΞΈ = (4 sinβ‘πœƒ/cosβ‘πœƒ + coπ‘ β‘πœƒ/cosβ‘πœƒ )/(4 sinβ‘πœƒ/cosβ‘πœƒ βˆ’ coπ‘ β‘πœƒ/cosβ‘πœƒ ) = (πŸ’ π­πšπ§β‘γ€–πœ½ + πŸγ€—)/(πŸ’ π­πšπ§β‘γ€–πœ½ βˆ’ πŸγ€— ) Putting tan ΞΈ = πŸ“/𝟐 = (4 Γ— 5/2 + 1)/(4 Γ— 5/2 βˆ’ 1) = (10 + 1)/(10 βˆ’ 1) = 𝟏𝟏/πŸ— So, the correct answer is (A)

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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