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If sin theta + cos theta = m and sec th...

If ` sin theta + cos theta = m and sec theta + " cosec " theta = n ` then

A

`n(m^(1)+1)=2m`

B

`n(m^(2)-1)=2m`

C

`2n(m^(2)+1)=m`

D

`2n(m^(2)-1)=m`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-REVISION EXERCISE-PROPERTIES OF TRIANGLES
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