Let \(x \to 0^+\), \(\sec x \to 1\), \(\csc x \to \infty\), so sum \(\to \infty\). Similarly near \(\frac\pi2^-\). So the expression goes to infinity.

Let \(x \to 0^+\), \(\sec x \to 1\), \(\csc x \to \infty\), so sum \(\to \infty\). Similarly near \(\frac\pi2^-\). So the expression goes to infinity. - Aurero

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