※ 引述《king911015 (早已放棄愛上你)》之銘言：
: Find the area of the region bounded by y + x^2 = 4 and y + 3x = 0.
4 4-x^2
A=∫∫dydx = ∫ ∫ dydx
-1 -3x
4
= ∫ (4-x^2+3x)dx
-1
x^3 3 4 125
= 4x- ---- + ---x^2 | = ---
3 2 -1 6
^^^^^^^
--
○ "○ ○" ○"
(|\ (|\ )) ))
/`○rz /`○r27\" ○r27\"
○╭○rz ○rz ○rz-st○
￣′ ○=^
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 61.229.145.39