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The number of ordered pairs (alpha , bet...

The number of ordered pairs `(alpha , beta )` , where ` alpha , beta in [0,2pi]` satisfying ` log_(2 sec x )(beta^(2)-6beta+10)=log_(3)| cos alpha |` is

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The correct Answer is:
`:.` Three ordered pairs (0,3),`(pi,3)` and `(2pi,3)`
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