(chatquestion)...Identify which of the following statement(s) is(are) correct.([k] denotes greatest integer function of k) f(x) = 3cos(|x2 – x[) + 4(x + 2) |x| sin()x2 1 + 2x) is not differentiable exactly at 1 point f(x) = 3cos()x7 – x|) + 4|x| 2 sin(|x' + x|) is differentiable V Your Answer ХER f(x) = [x² – 2](1x| + |2x – 1| + |2x – 3| 3 + |3x – 5|) is not differentiable exactly at 5 points in (-1, 2) f(x) = [x2 – 21()x| + |2x – 1| + %D 4 |2x – 3|) is not differentiable Your Answer exactly at 5 points in (-1, 2)

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