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If sin ^(2) mx + cos ^(2) ny = a ^(2) th...

If `sin ^(2) mx + cos ^(2) ny = a ^(2)` then ` (dy)/(dx) =`

A

` (m sin ( 2m x ))/( n sin ( 2 ny))`

B

` (m cos (2 mx ))/(n sin (2ny))`

C

`(m cos (2mx))/(n cos (2ny))`

D

`(m sin (2 mx))/(n cos (2ny))`

Text Solution

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The correct Answer is:
A
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