Question

solve this frnds please​

Answer 1

$\huge{\underline{\mathfrak{\red {\ ANSWER}}}}$

THE DIFERENTIATION OF 5x²-2x+1

$\frac{dy}{dx}$

then :-

{5x²}-{2x}{+1}

5{x²}-2{x}+0

5×2x -2

10x-2

x will be :-

${x}^{max} = \frac{2}{10} \\ \\ {x}^{min} = \frac{1}{5}$

we HAVE TO FIND MINIMUM NUMBER SO TAKE x = 1/5

$= > 5 \times \frac{1}{25} + 2 \times \frac{1}{5} + 1 \\ \\ \frac{1}{5} - \frac{2}{5} + \frac{1}{1} = \frac{4}{5}$