question72 - ¢+ áu«z O 7201 C ° 1. 2. 3. 4. ˜q‡¿ AO...

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Unformatted text preview: ¢+ áu«z O 7201 C ° 1. 2. 3. 4. ˜q‡¿ AO @'·ª* B ¸H'·ª* CO @'·ª* @ '·ª* A ˜q‡¿ BC CC AC CC AC 31 BC 31 CC 3 ‰¾ª*ÐùWE AC BC CC D 7202 C C ADC ˜q‡¿ B @'·ª C ADC=90° AB + BC =121 BD =1 C A B 7203 ¸H'·ª OC 1 ABC C 1 O C C ABC ¸·ª* 'H 1 IC IT C C BTC EC FC TC EF C A F B O I E C 7204 T 1 L 2 3 4 357 L 4013 8 12 L L 20 L O OL K 2006 4015 8028 2007 4017 8032 16060 N 2008 2009 N @ 7? . EWû@ 20091 @ûWE" . ?7@ K=? 1, 2, 3, L , 7205 1 x2 y2 22 − 12 + 22 − 32 2 y2 x +2 2 42 − 12 4 − 3 2 2 x +y 62 − 12 62 − 32 2 2 x +y 82 − 12 82 − 32 z2 w2 + 2 2+ 2 =1 2 − 5 2 − 72 z2 w2 + 2 2+ 2 =1 4 − 5 4 − 72 z2 w2 + 2 2+ 2 =1 6 − 5 6 − 72 z2 w2 + 2 2+ 2 =1 8 − 5 8 − 72 x 2 + y 2 + z 2 + w2 = ? ...
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This note was uploaded on 12/18/2010 for the course MATH 25234 taught by Professor Dr.maoxiaoxching during the Spring '10 term at Fudan University.

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