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Transcript

Question 1 Find the slope of the tangent to the curve 𝑦=3𝑥4 – 4𝑥 𝑎𝑡 𝑥= 4Given 𝑦=3𝑥4 – 4𝑥 We need to find Slope of tangent at x = 4 We know that Slope of tangent =𝑑𝑦/𝑑𝑥 =3 × 4𝑥^3−4 =𝟏𝟐𝒙^𝟑−𝟒 Putting 𝑥=4 =12(4)^3−4 =768−4 =𝟕𝟔𝟒 Thus, Slope of the tangent at 𝑥=4 is 764

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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 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.