Find `(d^2y)/(dx^2)`, if `y=x^3+tanx`.

Explanation

To find the second derivative \(\frac{d^2y}{dx^2}\) for the function \(y = x^3 + \tan x\), we will follow these steps:

### Step 1: Find the first derivative \(\frac{dy}{dx}\)
We start by differentiating \(y\) with respect to \(x\).

\[ y = x^3 + \tan x \]
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