engineering recuitment BEL Probationary Engineers Mock Test 2025 Engineering Mathematics Numerical Methods Solutions of Differential Equations
अवकल समीकरण (1 + 3x)dy - (1 - 3y)dx = 0, y(1) = 0 का हल क्या है?
1
x + y + 3xy = 1
2
x - y + 3xy = 1
3
x - y - 3xy = 1
4
x + y - 3xy = 1