(chatquestion)...(by strictly decreasing ne intervals in which the following functions are strictly increasing or decreasing: (a) x + 2x - 5 10 - 6x - 2x (b) -2x-9x- 12x + 1 (e) (x + 1) (x - 3) (d) 6- 9x - x? 2x Show that y= log(1+ x)- 2+x x > - 1, is an increasing function of x throughout its domain. D. Find the values of x for which y = [x(x - 2)1? is an increasing function. 4 sin 0 -e is an increasing function of e in 0, IProve that y = (2+cos 0)

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