Number of real solutions of x^4+8x^2+16=4x^2-12 x+9 02:17 Find LCM of polynomial: x^(2)-x-12,x^(2)-9 and x^(2)-8x+16 01:49 The number of real solutions of |x|+2sqrt(5-4x-x^2)=16 is/are a. 6 ... 03:03 The number of real solutions of sqrt(x^2-4x+3)+...
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【题目】Example 22:(AMC) The number of real solutions(x,y,z,w) of the simultaneous equations$$ 2 y = x + \frac { 1 7 } { x } $$,$$ 2 z = y + \frac { 1 7 } { y } , 2 w = z + \frac { 1 7 } { z } , 2 x = w + \frac { 1 7 } { w } i s $...
We obtain bounds as a function ofn, for the number of real solutions of the random algebraic equation &unknown;ax=Kwhere the coefficientsa's are independent random variables andKis a sequence of real numbers with suitably specified growth. Both cases of finite and infinite variances are ...
Example 22:AMC)The number of real solutions17(x,y,z,w)of the simultaneous equations 2y =x2z=y+17,20=z+17,2x=w+17is().17(A)1(B)2(C)4(D)8(E)16Example 22:(AMC)The number of real solutions (x,y,z,w)of the simultaneous equations 2y =x+ 172z=y+y 172W=2+ 172x=W+...
The type of the solution of a quadratic equation can be determined by a standard value that is called the discriminant value. D=b2−4ac If D>0, then the solutions are real and distinct. If D<0, then the solutions are imaginary. ...
Find the number of real solutions for x^2+5x+7=0 3021 相关知识点: 试题来源: 解析 258545 x^2+5x+7=0 a=1,b=5,c=7 x=(-b±√(b^2-4ac))/(2a)=-5±√(25-4*1*7) x=(-5±√3)/2 x=(-5+1/2√3)/2,(-5-3√3)/2 专情况: B 反馈 收藏 ...
Answer to: Use the discriminant to determine the number of real solutions of the equation. Do not solve the equation. \\ 4x^2 + 5x + \dfrac{13}{8}...
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The number of real solutions of the (log)(0. 5)|x|=2|x| is (a) 1 (b) 2 (c) 0 (d) none of these