what is the value of cot square tita minus 1 upon sin square tita
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cot²∅ - 1/sin²∅
=> cos²∅/sin²∅ - 1/sin²∅
=> (cos²∅ - 1)/ sin²∅ {taking LCM}
=> Using Identity sin²∅ + cos²∅ = 1
=> sin²∅/ sin²∅
=> 1
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