The general solution of the DE ` (dy)/(dx) + y tanx = sec x ` isA. ` y = sin x -C cos x `B. `y = sin x + C cos x `C. `y = cos x - C sin x `D. none of these

The general solution of the DE ` (dy)/(dx) + y tanx = sec x ` isA. ` y

1.	The general solution of the DE ` (dy)/(dx) + y tanx = sec x ` isA. ` y = sin x -C cos x `B. `y = sin x + C cos x `C. `y = cos x - C sin x `D. none of these
Answer» Correct Answer - B Given DE is linear `IF = e ^( int tan x dx ) = e ^( log (sec x)) = sec x ` `therefore ` its solution is `y (sec x ) = int sec ^(2) x dx rArr y ( secx ) = tan x + C rArr y = sin x + C cos x `.