secA+tanA=m,secA-tanA=n,eliminate A

Asked by pooja dev | 20th Nov, 2010, 12:00: AM

Expert Answer:

Dear student,
 

secA + tanA = m, secA – tanA = n

So, mn = (secA + tanA) (secA – tanA) = sec2A – tan2A = 1

(As 1+ tan2A = sec2A)

We hope that clarifies your query.

Regards,

Team

TopperLearning

Answered by  | 22nd Nov, 2010, 11:35: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.