tan theta+cot theta=2.Then find tan^theta+cot^theta
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tanA + cotA = 2
(tanA + cotA)² = 2²
tan²A + cot²A + 2tanAcotA = 4
tan²A + cot²A + 2 = 4 ... (tanAcotA = 1)
tan²A + cot²A = 2
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