Differential calculus? Honestly, idk.
Q.1 and Q.15 had me stumped.
I forgot the method for depressed cubics so I couldn't even factorise the function in 1.
As for 15, I don't understand how we solve the DE with an inequality? If it was an equation, then characteristic quadratic gives us the solution, but with a ≥, I have no clue.
I forgot the method for depressed cubics so I couldn't even factorise the function in 1.
As for 15, I don't understand how we solve the DE with an inequality? If it was an equation, then characteristic quadratic gives us the solution, but with a ≥, I have no clue.
