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Cosec2Φ-cot2Φ |
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Answer» Cosec2ø-cot2ø=1/sin2ø - cos2ø/sin2ø=1-cos2ø/sin2ø=2sin²ø/2sinøcosø=tanø cosec2A-cot2A=1/sin2A-cos2A/sin2A=1/sin2A(1-cos2A)sin2A/sin2A=1\xa0 |
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