Ashwini posted an Question
April 02, 2020 • 22:04 pm 30 points
  • IIT JAM
  • Mathematics (MA)

Solve: cos y log( sec x + tan x)dx = cosxlog (sec y + tan y ) dy

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    Ujjawal vishal best-answer

    solution attached concept : simple substitution. let, log (sex+tanx)=u => Secxdx = du

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