What is (d^2)/(dx^2)(sqrt(x^2+1)) ?

The answer to (d^2)/(dx^2)(sqrt(x^2+1)) is 1/((x^2+1)sqrt(x^2+1))

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(d^2)/(dx^2)(sqrt(x^2+1))

\frac{d ^{2}}{d x ^{2}} (x^{2} + 1)

\frac{1}{( x ^{2} + 1 ) x ^{2} + 1}

Solution steps

\frac{d ^{2}}{d x ^{2}} (x^{2} + 1)

\frac{d}{d x} (x^{2} + 1) = \frac{x}{x ^{2} + 1}

= \frac{d}{d x} (\frac{x}{x ^{2} + 1})

\frac{d}{d x} (\frac{x}{x ^{2} + 1}) = \frac{1}{( x ^{2} + 1 ) x ^{2} + 1}

= \frac{1}{( x ^{2} + 1 ) x ^{2} + 1}

2 x^{2} + 3 x - 4

\frac{d}{d x} (ln (π x))

\int \frac{5}{( x + 1 ) ^{2}} d x

f (t) = t 4 - t^{2}

(y^{2} + 2 x y) d x - x^{2} d y = 0

What is (d^2)/(dx^2)(sqrt(x^2+1)) ?
The answer to (d^2)/(dx^2)(sqrt(x^2+1)) is 1/((x^2+1)sqrt(x^2+1))