直线的倾斜角与斜率练习题11088.pdf

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1、18161l1l2x23x1=0l1l2ABCD2x+y1=0ABC D3xy1=0ABCD4lx+y+3=0A30B60C120 D1505A 31B2bC 8 11bA2 B3 C9 D96A30B45C60D1207llA 090B 0180 C 90180D901808lA11B21lA B CD9M12N42+A30B45C60D9010 x+1+my2=0mx+2y+4=0mA1 B2 C12 D11l1ax+2y+a+3=0l2x+a+1y+4=0aA1 B2 C12 D1212L1ax+3y+1=0L22x+a+1y+1=0L1L2a28A3 B2 C32 D32132mx+y

2、+6=0m3xy+7=0mA1 B1 C11 D314l1ax+2y+6=0l2x+a1y+a21=0a=A2 BC1 D215ABCD16xcos+ysin+a=0 xsinycos+b=0ABCDab117l1axy+2a=0l22a1x+ay+a=0a118l13x+4y12=01l2l113l22l2l1l24l238161l1l2x23x1=0l1l2ABCDl1l2k1k2l1l2x23x1=0k1k2=1l1l2D2x+y1=0ABC Dx+y1=0 x+y1=0y=x+1tan 0C3xy1=0ABCDk=0180A484lx+y+3=0A30B60C120 D150lx+y+

3、3=0tan0180=120C5A 31B2bC 8 11bA2 B3 C9 D9A31B2bC811kAC=kABb=9D6A30B45C60D120y=x+2tan0180=60C7llA 090B 0180 C 90180D90180llD8lA11B21lA B CDlA11B2158kAB=A9M12N42+A30B45C60D90M12N42+k=tan 0180=30A10 x+1+my2=0mx+2y+4=0mA1 B2 C12 Dx+1+m y2=0mx+2y+4=0m=1A11l1ax+2y+a+3=0l2x+a+1y+4=0aA1 B2 C12 D12l1ax+2y+a+

4、3=0l2x+a+1y+4=0l1l2=a=1a=2a=1a1a=2B6812L1ax+3y+1=0L22x+a+1y+1=0L1L2aA3 B2 C32 D32L1ax+3y+1=0L1L2L22x+a+1y+1=0=a=3a=2A132mx+y+6=0m3xy+7=0mA1 B1 C11 D3m=1B14l1ax+2y+6=0l2x+a1y+a21=0a=A2 BC1 D2l1ax+2y+6=0l2x+a1y+a21=0l1l2a?1+2a1=0a=B1578ABCDD16xcos+ysin+a=0 xsinycos+b=0ABCDabcos=0sin=00cossin0tan1B117l1axy+2a=0l22a1x+ay+a=0a01l1axy+2a=0l22a1x+ay+a=0a2a1+1a=0a=018801118l13x+4y12=01l2l113l22l2l1l24l21l2l1l23x+4y+m=0 x=1y=33+12+m=0m=9l23x+4y9=02l2l1l24x3y+n=0y=0 x=x=0y=S=?|?|=4n2=96n=4l24x3y+4=04x3y4=0