sathishrathnayaka sathishrathnayaka 31-12-2022 Mathematics contestada [tex] { \cot(a) }^{2} ( \sec(a ) - 1 \div 1 + \sin(a) ) + \sec {a}^{2} ( \sin(a) - 1 \div 1 + \sec(a) ) = 0[/tex]prove that