Question

If in an Ap, the sum of 12 terms is equal to 18 and the sum of 18 terms is equal to 12 ,then prove that the sum of 30 terms is -30​

Answer 1

100% correct answer

Hope it's helpful ✌️✌️

$\huge\color{red}\boxed{\colorbox{black}{please\:mark\:me\: brilliance}}$

$\huge\underline\purple{\underline {Follow\:Me}}$