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In the figure, 'A C' and 'B C' are tange...

In the figure, 'A C' and 'B C' are tangents to the circle from 'C'. Centre of the circle 'O'.
i) Find '/_ A'.
ii) If. '/_ O', is 2 times '/_ C', then what is '/_ C' ?'(##VPU_TTT_MAT_X_P02_C07_E02_003_Q01##)'

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