thatlightcandamageoureyesundercertaincircumstances,there?snoscientificevidencesuggestingthatbluelightisharmfultooureyes.But manypeoplestillthinkitis,whichiswhybluelight-blockingglassesaresopopular.Sodothe glasseswork? “Everyoneisveryconcernedthatbluelight maybecausingdamagetotheeye,butthere?sno evidencethatitmaybeca...
39K Understand what the standard form of a complex number is. See examples of imaginary numbers. Learn to write complex numbers in the (a+bi) form. Discover how to write complex numbers in standard form after basic mathematical operations. Related to this QuestionWhy...
The mean is another word for a mathematical “average.” The simple or arithmetic mean is the average calculated by summing up the values of some observations and dividing by the number of observations. The geometric mean is calculated by multiplying all the numbers in a dataset and then taking...
is the point we get to if we piggy back vectors z1 and z2 and then follow them both. By this I mean that we translate (i.e. move without rotating or stretching) z2 so that its beginning is at the end of z1, and then we follow the path consisting of the two vectors until we...
1. What does the underlined part “the joke was on us” in Paragraph 1 mean? A.We were actually joking. B.We were laughed at by others. C.We were underestimating ourselves. D.We were just embarrassing ourselves.2. What is Paragraph 2 mainly about? A.What Blinkist is. B.Why Blinkist...
From now on, arg(z)(z) will be considered to mean Principal arg(z)(z). Observe now that we have two ways to specify an arbitrary complex number; one is the standard way (x,y)(x,y) which is referred to as the Cartesian form of the point. The second is by specifying the modulus...
A. People s false memories result from the impact of different emotion provoked by later experience on the same spot. B. The success in research indicates that it won t be long that a therapy is worked out for people disturbed by painful memory. ...
The harmonic mean is calculated by dividing the number of observations, or entries in the series, by the reciprocal of each number. In contrast, the arithmetic mean is simply the sum of a series of numbers divided by the count of numbers in that series. The harmonic mean is equal to the...
What precisely triggered off yesterday's riot is still unclear... 究竟是什么引发了昨天的骚乱还不清楚。 柯林斯高阶英语词典 What I wanted, more than anything, was a few days' rest... 我最想要的就是能休息几天。 柯林斯高阶英语词典 She had been in what doctors described as an irreversible ve...
Uncover the ecommerce meaning, types, and examples in our comprehensive guide. Explore what ecommerce is and the key aspects driving this industry today.