Q. 194.0( 4 Votes )

# Solve the followi

Answer :

Given: Dividing both sides by cos2 x, we get  … (1)

Which is a linear differential equation of the form Here P=sec2 x, Q = tan x. sec2 x Solution is  Putting tan x = t sec2 x dx = dt  yet = tet – et + c = et (t – 1) + c

Since tan x = t, y = tan x – 1 + ce-tan x

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