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Select the INCORRECT formula from the following options.
$$sec^{2} \theta - tan^{2} \theta = 1$$
$$\sin^{2} \theta + \cos^{2}\theta = 1$$
$$\cosec^{2} \theta - \cot^{2} \theta = 1$$
$$\sec^{2} \theta + \cos^{2}\theta = 1$$
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