. Differential Equations Exercise . .(i) ( , ) (ii) ( , ) (iii) ( , ) (iv) ( , ) (v) ( , ) (vi) ( , ) (vii) ( , ). .(i) y x dy - æ è ç ö ø ÷ (ii) xy dy − (iii) y + x dy dx = (iv) x + y dy dx = .
r d y = + . y x dy . a d y + = . dy xy - .
y x dy y dy Exercise . .(i) e ax − + = (ii) log x . log .(i) x Cy (ii) log( + = − . ( sin ) cos ) XII Std - Business Maths & Stat EM - - Answers .
( )( .(i) log cos = − (ii) e ax by = − . ( Exercise . . x Ce .
x Ke x y . y x C . yx - . xy .
xy - . y ce Exercise . . y .
ye sin sin (sin . x y . y