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\frac { \operatorname { sec } \theta - \operatorname { tan } \theta } { \operatorname { sec } \theta + \operatorname { tan } \theta } = 1 - 2 \operatorname { sec } \theta \operatorname { tan } \theta + 2 \operatorname { tan } ^ { 2 } \theta |
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Answer» Thank you |
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