32If tano + sino = m and tano - sine = n. Show that m? - nOR= 4 mn – InterviewSolution

1.	32If tano + sino = m and tano - sine = n. Show that m? - nOR= 4 mn
Answer» tanA+sinA=msquaring both sidetan^2A+sin^2A+2sinAtanA=m^2 ----(1)tanA-sinA=nsquaring both sidestan^2A+sin^2A-2sinAtanA=n^2----(2)by substrate 1 -24sinAtanA= m^2 - n^2

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