Is this product of integrals positive or negative?

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Let \[T=\left( \int _{-\pi/2}^{\pi/2}\cos x\,dx\right)\times \left(\int_\pi ^{2\pi} \sin x\,dx\right) \times \left(\int_0^{\pi/8}\frac{dx}{\cos 3x}\right).\] Which of the following is true?

1. \(T=0\);

2. \(T<0\);

3. \(T>0\);

4. \(T\) is not defined.