百度试题 结果1 题目The equation , where is a constant, has no real roots.Show that . 相关知识点: 试题来源: 解析反馈 收藏
11 The equation of a curve is y=-ln(3-ax) , where a is a constant.(i) Find the value of a if the gradient of the curve at y=-In 5 is 2.[4] (ii) Find the value of a if the normal to the curve at x = 1 is parallel to the line 2x-y=5.[2] (i) In the ...
百度试题 结果1 题目The equation , where k is a constant, has different real roots.Find the set of possible values of k. 相关知识点: 试题来源: 解析 k<-2 or k>6 反馈 收藏
(b) The equation of a curve is y=x^3+5x^2-8x+k , where k a constant.Find the set of values of x for which y is decreasing. 相关知识点: 试题来源: 解析 (dy)/(dx)=3x^(3+5)+⋯8x+6For decreasing function,(dy)/(dx)0(12)/(20)-3/(20)+x-(30)/(40)=2/3 ...
Let a be a constant. If the quadratic equation x2 ax a=1 has equal roots, then a=( ). 设a为一常数.若二次方程x2 ax a=1有等根,则a=( ). A. −1. B. 2. C. 0 or −4.0或−4. D. 0 or 4.0或4. 相关知识点: 试题来源: 解析 B x2+ax+a=1 x2+ax+a−1=0...
aThe equation takes the form of an extended error function in which the constants c and n are functions of the slope inclination, and the K-constant is a function of the slope inclination and the depth of the slip surface. 等式采取常数c和n是倾斜倾向的作用一种延长的误差函数的形式,并且K...
In both cases, the Hamiltonian is assumed to be semibounded from below and to have a constant form domain, but a possibly non-constant operator domain. The problem is addressed in the abstract setting, without assuming any specific functional expression for the Hamiltonian. The connection between...
试题详情 题目: y=kx+3In the equation above, k is a constant. If y = 17 when x = 2, what is the value of y when x = 4 ? 选项: A、 34 B、 31 C、 14 D、 11 E、 7 答案: B 经典答疑 发起提问 × Close 还没有人问到这里,扫码去GMAT出国考试答疑器提问吧。 学长...
It is an exponential function of the parameter B, the activation temperature, and the parameter A is a multiplicative constant called the Arrhenius frequency parameter. The design variable is the temperature T and good choices for its settings produce efficient estimates for A and B. Many ...
一道数学题.英文版的! Given that the equation kx²+12x+k=0,where k is a positive constant ,has equal roots ,find the value of k 相关知识点: 试题来源: 解析 方程kx²+12x+k=0,k是正数,有两个相等的根,求k的值 12^2-4k^2=0,k=6(k=-6舍掉) ...