Question

Hi


If,

Sec theta+tan theta= m

sec theta -tan theta = n

Then prove, mn = 1

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Answer 1

Hey mate!

Refer the attachment..

I hope it helps u..

Answer 2

Sec^2theta-tan^2thetha=1

(Sec theta+tan theta) (sec theta-tan theta) =1

Given,

• Sec theta + tan theta=m

And

• Sec theta - tan theta =n

According to it:

=>(m) (n) =1

=>mn=1

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