√(x^2+12x+19)=-1 ( extraneous) Or √(x^2+12x+19)=3 Squaring both sides of x2 +12x +19=3 x^2+12x+19=9⇒x^2+12x+10=0 Since the discriminant of the quadratic A =122-4 x 100, the two roots are real and by Vieta's Theorem, the sum of two roots is then -12...
Can you give me anexampleof what you mean? 你能给我举个实例来解释你的意思吗? 牛津词典 Theexamplesare unique to this dictionary. 这些例证是这部词典独有的。 柯林斯高阶英语词典 Following theexampleset by her father, she has fulfilled her role and done her duty... ...
【题目】Example 9: Find the sum of the real roots of the equation$$ x ^ { 2 } + 1 2 x + 1 6 = 2 \sqrt { x ^ { 2 } + 1 2 x + 1 9 } $$ 相关知识点: 试题来源: 解析 【解析】 Solution:-12. Method 1: Rewrite the original equation as $$ x ^ { 2 } + 1 2 x...
While some have argued thatobese nurses may be less productiveand take more time off sick, this isn’tmy concern at all. I’m just worried about the appalling example they set others. Yes, of course, nurses and doctors are human beings....
Unjust enrichment has its roots in equitable law, where fairness is prioritized in judicial decisions. The principle ensures that individuals or entities cannot retain benefits obtained unfairly, even in the absence of a formal contract. Its basis lies in preventing the wrongful retention of assets ...
Rootssinc=2/π,c=0..π,numeric 0.6901070914,2.451485562 TheRootscommand, which attempts to return all real solutions (of an equation) in a bounded interval, is not presently available in the Context Panel's Solve options prior to Maple 18. The closest synt...
Ch 1. Algebra II: Real Numbers Types of Numbers & Its Classifications 6:56 Graphing Rational Numbers on a Number Line | Chart & Examples 5:02 Notation for Rational Numbers, Fractions & Decimals 6:16 The Order of Real Numbers: Inequalities 4:36 Finding the Absolute Value of a Real...
The trigonometric form of complex numbers make use of their modulus and argument. Learn more about the polar or trigonometric forms here.
Example 5: Prove Cauchy's Inequality ( in three terms)≤(a_1^2+a_2^2+a_3^2)(b_1^2+b_2^2+b_3^2) a1, a2, a_3and b1, b_2,⋯ , b3are real numbers.The equality holds if a 10n/yir(bi)/(a_1)=(b_2)/(a_2)=(b_3)/(a_3)(a_1^2+a_2^2+a_3^2)x^2- ...
tying it closely to financial dealings where one party returns a portion of funds to another in exchange for preferential treatment. However, the word’s etymology hints at a more layered history, with roots in phrases that imply “giving back” or “recoil” in return for an advantage or fa...