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Question

Math 6420 • PDE

Fall 1994 • Question 12

Derive the first term in the asymptotic representation, valid for \(x\to+\infty\), of the function \[ F(x)=\int_0^1 \cos\left(t^2\sqrt{x^3+x}\right)\,dt. \]

Raw LaTeX

Derive the first term in the asymptotic representation, valid
for \(x\to+\infty\), of the function
\[
  F(x)=\int_0^1 \cos\left(t^2\sqrt{x^3+x}\right)\,dt.
\]
\end{enumerate}