(1) (-3/4根号2)²(2)(根号3)²-(-根号5)²-2(根号2)²
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(1)(-3/4根号2)²(2)(根号3)²-(-根号5)²-2(根号2)²(1)(-3/4根号2)²(2)(根号3)²-(-根号5)
(1) (-3/4根号2)²(2)(根号3)²-(-根号5)²-2(根号2)²
(1) (-3/4根号2)²
(2)(根号3)²-(-根号5)²-2(根号2)²
(1) (-3/4根号2)²(2)(根号3)²-(-根号5)²-2(根号2)²
(1) (-3/4根号2)²=(9/16)*2=9/8
(2)(根号3)²-(-根号5)²-2(根号2)²
=3- 5- 2*2
=-2-4
=-6
9/32 -6