For the sake of periodicity - Part 3

Geometry Level 4

Which of the following statements is/are incorrect?

Statement B: Both the functions \(\cos^2 (\sin x)\) and \(\cos (\sin x)\) are periodic with the fundamental period \(\pi\).

Statement E: Both the functions \(\cos^2 (\sin x)\) and \(\cos (\sin x)\) are periodic with the fundamental period \(2\pi\).

Statement S: Both the functions \(\sin^2 (\sin x)\) and \(\sin (\sin x)\) are periodic with the fundamental period \(\pi\).

Statement T: Both the functions \(\sin^2 (\sin x)\) and \(\sin (\sin x)\) are periodic with the fundamental period \(2\pi\).

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