设有三点、、,则的面积等于.https://p.ananas.chaoxing.com/star3/origin/8e19f497462eaf1e314b4d63ae50bad3.pnghttps://p.ananas.chaoxing.com/star3/origin/9d7e58c844301c8c5ba1dc66bc52f540.pnghttps://p.ananas.chaoxing.com/star3/origin/b749e7b1fef2deb38579deeefe9187bf.pnghttps://p.ananas.chaoxing.com/star3/origin/0b2856d5032b6ea458cc5223e2d36e2a.png
举一反三
- (1) 设,且当时,则函数 .https://p.ananas.chaoxing.com/star3/origin/1df4e5fa778b4917e841b8db8167c4fd.pnghttps://p.ananas.chaoxing.com/star3/origin/1df2c0c8afdc2620e06142ca249383d3.pnghttps://p.ananas.chaoxing.com/star3/origin/2dbeeae137681811236ccf243cfc0188.pnghttps://p.ananas.chaoxing.com/star3/origin/8443294c110ad3b06d5a640d6a3c7ade.png
- 在 中, , ,则 等于https://p.ananas.chaoxing.com/star3/origin/98366284d8feecd580613938380206ea.pnghttps://p.ananas.chaoxing.com/star3/origin/526e25c58361a406de96a44862df7aba.pnghttps://p.ananas.chaoxing.com/star3/origin/04970d84ab61ade1077625be94ccdd96.pnghttps://p.ananas.chaoxing.com/star3/origin/7a34359614a39bd8fbffa909e85a630f.png
- 错误1： 错误2： 错误3： 错误4：https://p.ananas.chaoxing.com/star3/origin/f3848a1490dc70b67502f23cb8a243a3.jpg
- 错误1： 错误2： 错误3： 错误4：https://p.ananas.chaoxing.com/star3/origin/da50b19fe94e35c6326124e9d69be679.jpg
- 设是圆,则https://p.ananas.chaoxing.com/star3/origin/d8b5edc9a2457c461a3685877f8606ab.pnghttps://p.ananas.chaoxing.com/star3/origin/5f3c1256fa1597901980dc868dfb57f7.pnghttps://p.ananas.chaoxing.com/star3/origin/1932e2a8e9452d4d6f94177a0ca40384.pnghttps://p.ananas.chaoxing.com/star3/origin/5785decddcc5b175015fc7c46d4d8405.png