simplify each expression
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I hope this will help you
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Step-by-step explanation:
(tan²Фcosec²Ф - 1)/sec²Ф ( tanФ=sinФ/cosФ)(cosecФ=1/si0nФ)
((sin²Ф/cos²Ф)(i/sin²Ф))/1/cos²Ф ( secФ=1/cosФ)
sin²Ф gets cancel
((1/cos²Ф) - 1)1/cos²Ф
((1-cos²Ф)/cos²Ф)/1/cos²Ф
cos²Ф gets cancel
1-cos²Ф
sin²Ф
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