三分之一乘以3.14×3^2×5+3点14×3^2×2等于多少?

2025-12-14 22:22:46
推荐回答(1个)
回答1:

(1/3)x3.14x3²x5+3.14x3²x2
=3²x3.14x(1/3 x5+2)
=9x3.14x(11/3)
=33x3.14
=103.62