Find the derivative (df/dx) 1- f(x) = cscx - 4√x + 7y−² 2-f(x)=x² cotx-x-2 3-f(x) = (secx + tanx) (secx-tanx) 4- f(x) = ₁² +²2-² 3 4 5- f(x) = 4x³ — x - 3

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