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Misc 4 - Differentiate sin-1 (x root x) - Chapter 5 NCERT

Misc  4 - Chapter 5 Class 12 Continuity and Differentiability - Part 2

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Transcript

Misc 4 Differentiate 𝑤.𝑟.𝑡. 𝑥 the function, 〖𝑠𝑖𝑛〗^(−1) (𝑥 √𝑥), 0 ≤ 𝑥 ≤ 1 Let 𝑦=〖𝑠𝑖𝑛〗^(−1) (𝑥 √𝑥) 𝑦=〖𝑠𝑖𝑛〗^(−1) (𝑥 . 𝑥^(1/2)) 𝑦=〖𝑠𝑖𝑛〗^(−1) (𝑥^(1 + 1/2)) 𝒚=〖𝒔𝒊𝒏〗^(−𝟏) (𝒙^( 𝟑/𝟐) ) Differentiating 𝑤.𝑟.𝑡. 𝑥 𝑑𝑦/𝑑𝑥 = 𝑑(〖𝑠𝑖𝑛〗^(−1) (𝑥^( 3/2)))/𝑑𝑥 𝑑𝑦/𝑑𝑥 = 1/√(1 − (𝑥^(3/2) )^2 ) × (𝑑(𝑥)^(3/2))/𝑑𝑥 ("As " 𝑑(〖𝑠𝑖𝑛〗^(−1)⁡𝑥 )/𝑑𝑥=1/√(1 − 𝑥^2 )) 𝑑𝑦/𝑑𝑥 = 1/√(1 − 𝑥^3 ) × 3/2 (𝑥)^(3/2 −1) = 1/√(1 − 𝑥^3 ) × 3/2 〖𝑥 〗^(1/2 ) = 1/√(1 − 𝑥^3 ) × 3/2 √𝑥 = 𝟑/𝟐 √(𝒙/(𝟏 −𝒙^𝟑 ))

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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.