sparkypiperluna sparkypiperluna 13-01-2023 Mathematics contestada cosec⁴A-cosec ²A=cot ⁴A-cot ²Afrom the internet it's different and i did in in this way :cosec ²A)²-cosec ²A1+cot ⁴A-2cot²A-1+cot ²A(1-1=0)(2cot ²A-cot ²A=cot ²A)cot ⁴A-cot ²A