Question

if seca+ tan a =m and sec a-tan a =n find m *n​

Answer 1

Answer:

$(seca + tana)(seca - tana)$

${( \(seca) }^{2} - \tan(a) \sec(a) + \tan(a) \sec(a) - { \(tan a) }^{2}$

${ \(seca) }^{2} - { \(tana) }^{2}$

$= 1$

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