點(diǎn)P從圓心在原點(diǎn)O的單位圓上點(diǎn)(1,0)出發(fā),沿逆時(shí)針?lè)较蜻\(yùn)動(dòng)
π弧長(zhǎng),到達(dá)點(diǎn)Q,則點(diǎn)Q的坐標(biāo)是______.
∵P從圓心在原點(diǎn)O的單位圓上點(diǎn)(1,0)出發(fā),
沿逆時(shí)針?lè)较蜻\(yùn)動(dòng)
π弧長(zhǎng),到達(dá)點(diǎn)Q,
![](http://hiphotos.baidu.com/zhidao/pic/item/b17eca8065380cd7f781975fa244ad34588281e0.jpg)
如圖,∠AOQ=
,OQ=1,
∴AQ=
,OA=
,
∴Q(-
,).
故答案為:(-
,)