函数<img src="/lqwvjeImg/c3/c3fc0dcbcec6e959c7b1a0420060957d.png">在点<img src="/lqwvjeImg/63/633732772d8aebb706a0b8bcf249c0c0.png">处的导数<img src="/lqwvjeImg/93/93084e90453f5a6bc51e959f338a56b4.png">的几何意义是曲线<img src="/lqwvjeImg/c3/c3fc0dcbcec6e959c7b1a0420060957d.png">在( )<br>·<img src="/lqwvjeImg/63/633732772d8aebb706a0b8bcf249c0c0.png">处的切线斜率<br>·<img src="/lqwvjeImg/53/532e7bf715eb0357276beb8e21a705fd.png">处切线的斜率<br>·<img src="/lqwvjeImg/53/532e7bf715eb0357276beb8e21a705fd.png">处切线与<img src="/lqwvjeImg/ee/ee0015db2abe49c30609b63f2ac7b16b.png">轴所夹锐角的正切<br>·<img src="/lqwvjeImg/63/633732772d8aebb706a0b8bcf249c0c0.png">处的切线的倾斜角