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(Last Updated On: December 4, 2018)

Solve (cos x cos y – cotx) dx – sin x sin y dy = 0

A. sin x cos y = ln (c cos x)

B. sin x cos y = ln (c sin x)

C. sin x cos y = -ln (c sin x)

D. sin x cos y = -ln (c cos x)

Solve (cosx cosy – cotx) dx – sinx siny dy = 0
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