根据原文第二段mathsteacherswhoarenervousaboutteachingthesubjectcanpassontheiranxietytothepupils(数学老师对教授这门学科感到紧张,他们会把焦虑转嫁给学生)可知如果老师对数学教学感到紧张,他们的学生在学习数学时会感到焦虑。故选D。(2)论证方式题。根据原文第三段around31%of15and16-year-oldsacross34countriessaid...
and in fact, one thing I think we forget to do as students is to actually remember to think about what we are doing, to think about the process of mathematics, to think about the issues that we going to talk about tonight. Math is hard enough, and so we spend all the time with m...
For example, a Goode homolosine projection uses four distinct interruptions that cut through the oceans but leave major land masses untouched. A Goode projection of the Earth. Image used under the GNU Free Documentation License Different projections have different strengths and weaknesses. In ...
There is a boy in the classroom. 划线部分提问:Who's in the classroom?(不能用What's in theclassroom?) There are twenty boys in the classroom. 划线部分提问:Who's in the classroom? 7.邻近原则(顾头不顾尾) There is a pencil and some booksin my bag. There are some books and a pencil...
Related to this Question How do I prove the existence of an object in math? How to prove that something is unprovable? Let f ( x , y ) = x x y . Prove that lim ( x , y ) ( 0 , 0 ) f ( x , y ) does not exist. ...
In your problem, think: am I interested in the dome (sin/cos), the wall (tan/sec), or the ceiling (cot/csc)? Happy math. Update:The owner ofGrey Mattersput together interactive diagrams for the analogies (drag the slider on the left to change the angle): ...
d/dx sin(x) = cos(x) d/dx cos(x) = - sin(x) d/dx tan(x) = 1 - tan2(x) d/dx arcsin(x) = 1/sqrt(1-x2) d/dx arccos(x) = -1/sqrt(1-x2) d/dx arctan(x) = 1/(1+x2) Applications of the Derivative The derivative comes up in a lot of mathematical problems. ...
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Gerald has taught engineering, math and science and has a doctorate in electrical engineering. Cite this lesson In this lesson, we find the power series for ln(1 - x) by deriving a simpler series and then integrating it. This lesson includes how to find the interval of convergence. The...
Math Pre-Calculus Trigonometric functions How do you determine sin(-19pi/6)?Question:How do you determine sin(-19pi/6)?Summation Identities of Trigonometric Functions:The summation identities of trigonometric functions are useful in determining the exact value of the trigonometric function that has...