數學問題請教
A certain right triangle has sides of length x, y, z , where x< y< z. If the
area of this triangle region is 1, which of the following indicates all of
the possible values of y?
A y> √2
B. √3/2 > y > √2
C. √2/3> y > √3/2
D. √3/4 <y< √2/3
E. y<√3/4
What fraction of the number of integer multiples pf 2 between 1 and 99 are
also integer multiples of 3 ?
A. 16/99
B. 16/49
C. 1/3
D. 49/99
E. 33/99
第二題 題目不是很懂再問啥?
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