Question

URGEEENT dau coroana suma lui gauss
1 supra 3+1 supra 3+1 supra 3...+1 supra 3 30 termeni ​

Answer 1

$\it \underbrace{ \it\dfrac{1}{3}+\dfrac{1}{3}+\dfrac{1}{3}+\ ...\ \dfrac{1}{3} }_{30\ termeni}=30\cdot\dfrac{1}{3}=10$