Let be a constant. If the quadratic equation has equal roots, then ( ). 设为一常数.若二次方程有等根,则( ). A: . B: . C: or . 或. D: or . 或. 相关知识点: 试题来源: 解析 B Since it has equal roots, 因为方程有等根, (double roots)....
百度试题 结果1 题目If 1. w, w2 are the cube roots of unity, then12w2n1is equal to B A2B0G1D 相关知识点: 试题来源: 解析 B 反馈 收藏
Step by step video, text & image solution for If the roots of equations x^(2) - mx+ 16=0 are equal then the value of m is: by Maths experts to help you in doubts & scoring excellent marks in Class 10 exams.Updated on:21/07/2023Class...
If a and b are the roots of the equation x2+ax+b=0,a≠0,b≠0, then the values of a and b are respectively A2 and -2 B2 and -1 C1 and -2 D1 and 2Submit If a and b (≠0) are the roots of the quadratic x2+ax+b=0 then the least value of x2+ax+b(x∈R) is ...
(d) none of these Q. If tan p θ−tan q θ=0,then the values of θ form a series in Q. If the roots of the equation a(b−c)x2+b(c−a)x+c(a–b)=0 are equal, then a, b, c are in Q. If a, b, c are in G.P. and a1/x = b1/y = c1/z, then...
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 Since it has equal ...
If the equation in x,$$ x ^ { 2 } + m x + n = 0 $$, has two equal real roots, then a pair of real values of m and n that satisfies the condition could be m=___ and n=___. 相关知识点: 试题来源: 解析 2 1 (can be any values of m and n as long as they ...
If L, M are the two roots of the equationx2−21x+4=0then findL+M. Quadratic Formula: The quadratic formula is one of the methods for finding the solutions or roots to a quadratic equation. This formula is designed to solve the quadratic equation w...
The square roots of 36 are 6 and -6. True False The length of the vector integral_0^pi (cos 2t, 2, 6t) dt is equal to 4 pi square root {1+9 pi ^2}: A. true B. false Determine if the following statement is true or false: If R > 0 and f(x) = \sum_{n=0}^...
If the roots of the equation (p2+q2)x2−2q(p+r)x+(q2+r2)=0are real and equal, then p, q and r will be in View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class...