CBSE Class 11-science Answered
secA+tanA=m,secA-tanA=n,eliminate A
Asked by pooja dev | 20 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 | 22 Nov, 2010, 11:35: AM
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