Substitution tab lagao jab ek function aur uski derivative dono integral mein dikhe, jaise √(2x+1). Integration by parts tab yaad rakho “ILATE” rule se, jaise x sinx jaisa kuch ho. Partial fractions sirf tab kaam aate hain jab rational function ho (polynomials ka ratio).
Main yeh sab coaching ke sir se seekhti hoon, par mujhe yaad rakhna padega kyunki mere papa ka auto chalaane se jitna kamaate hain, usme se bohot mere coaching fees ke liye jaata hai. Isliye har trick ko dhyan se samajhna padta hain taaki koi question choote na.
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