Question

a3=-32 a5=-44
пж помогите плиз , заранее пасибки!!!!​

Answer 1

$\displaystyle\bf\\\left \{ {{a_{3} =-32} \atop {a_{5} =-44}} \right.\\\\\\-\left \{ {{a_{1}+4d=-44 } \atop {a_{1} +2d=-32}} \right. \\----------\\2d=-12\\\\d=-6\\\\a_{1} =-32-2d=-32-2\cdot(-6)=-32+12=-20\\\\a_{n} =a_{1} +d(n-1)=-20-6(n-1)=-20-6n+6=-6n-14\\\\Otvet:a_{n} =-6n-14$