assume the differential equation is y''+ p(x)y'+q(x)y=0 If lim...
Assuming that (a+b,ab)=R >1, we try to lead to a contradiction, (a,b)>1. ...
Assuming an angle θ, the height and the top of the trapezoid are 5sinθ, and 5+2*5cosθ...
Assume that a^2 - b = p^2 for some positive rational p , c = (a+p)/2 , and d = (a-p)/2, it...
Assume that a = 3x , b = 5x so (a,b) = x ; [a,b] = 15x (a,b) + [a,b] = 16x = 112 => x = 7 a = 21 ; b = 35
Assume 銷售X個Profit= YY=(5000-X)*(1000+X)=5000000+4000X-X2 求極值,dY/dX=0dY/dX=4000-2X=0,X=2000Max.= 3000*3000=9000000