Practice Questions CBSE - Maths Class 12 (2023 Boards)

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Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Question 37 (ii) - Choice 1 - Practice Questions CBSE - Maths Class 12 (2023 Boards) - Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

Last updated at May 29, 2023 by

Show that the function C(t) is strictly increasing in the interval (3, 4).

 

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Show that the function š¶(š‘”) is strictly increasing in the interval (3, 4).Given. Equates the derivative Cā€²(š‘”) to 0 and factorises Cā€²(š‘”) as 3(3 + t)(6 āˆ’ t). Writes that for t Ļµ (3, 4), 3>0, (3+š‘”)>0 and (6+š‘”)>0 Therefore, Cā€²(š‘”)>0 Concludes that C(š‘”) is strictly increasing in the interval (3, 4).

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