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The solution of the differential equatio...

The solution of the differential equation `y sec^(2) x dx + tan x . Sec^(2) y dy = 0` is

A

tanx +tan y = k

B

tanx - tan y = k

C

(tan x)/(tan y) = k

D

tan x. tan y = k

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The correct Answer is:
D
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HIMALAYA PUBLICATION-DIFFERENTIAL EQUATIONS-QUESTION BANK
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