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Ex 6.2,12 - Chapter 6 Class 12 Application of Derivatives - Part 7

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Ex 6.2, 12 Which of the following functions are strictly decreasing on (0,𝜋/2) ? (D) tan 𝑥f(𝑥) = tan 𝑥 f’(𝒙) = sec2 𝒙 As square of any number is always positive So, f’(𝑥) > 0 for all values of 𝑥 ∴ f is strictly increasing on (0 , 𝜋/2)

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