Ex 5.2, 8 Differentiate the functions with respect to π₯ cos (βπ₯) Let π¦ = " cos " (βπ₯)
We need to find derivative of π¦ π€.π.π‘.π₯
i.e. ππ¦/ππ₯ = π(cosβ‘βπ₯ )/ππ₯
= βsin βπ₯ . (π(βπ₯))/ππ₯
= βsin βπ₯ . 1/(2βπ₯)
= (βπ¬π’π§β‘βπ)/(πβπ)

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.