If A is a point on the unit circle in Figure, then what are the coordinates of A? () A. (sin 30°,cos 30°) B. (√(22),√(22)) C. (12,√(32)) D. (12,12) E. (√(32),12) 相关知识点: 试题来源: 解析 E 反馈 收藏 ...
Unit circle: definition and intersection with a line: Definition: We called unit circle to the circle with radius 1 centered at the origin {eq}(0,0) {/eq}. Standard form equation: The standard form equation for the unit circle is: ...
The line tangent to the circle x^2+y^2=1 at (35,45 ) is perpendicular to the radius drawn from the point of tangency.Note that the equation x^2+y^2=1 represents a circle centered at the origin with a radius of one unit.The line containing the radius from point (35,45 ) has...
I’m going to the zoo.I’m going to look at the animals.You can come, too!I’m going to the zoo. I’m going to the zoo.I’m going to play football.You can come, too!zoolooktoofootball1book room2foot balloon3look cool4good zoo5cook too6goodbye afternoonListen, circle and say....
What transformations map the unit circle x^2+y^2=1 on to this ellipse?相关知识点: 试题来源: 解析 A one-way stretch scale factor 3 parallel to the y-axis followedby a one-way stretch scalefactor 4 parallel to the x-axis (transformations can be carriedout in either order)....
What is a Unit Cell? - The unit cell must construct the Bravais lattice by repeating itself in space. However, nothing is said about the number of points that must be contained within the unit cell. Lithium metal crystallizes in a body centered cubic cry
A container is a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another. A Docker container image is a lightweight, standalone, executable package of software that includes everything needed to...
The point of intersection of two curves is a point where both curves meet. To find the point of intersection, we just substitute one equation into the other equation and solve.Answer and Explanation: Become a Study.com member to unlock this answer! Create your account Vie...
EListenandcircle Great!Nowyoucangoinside!Magicbottle 神奇的瓶子Step1:—WhatcolourisIt?Step2:Shakeit!(摇晃瓶子)Step3:—whatcolourisitnow?—It’s…Whatmakesthecolours?Number1 Number2 Number3 WatchandfindWhatmakesthecolours?Thethreeprimarycolours（三原色）三原色指色彩中不能再分解的三种基本颜色 yellow blue...
知识梳理Languagepoints1.Asamountainclimber,Aronisusedtotakingrisks.作为一名登山者,Aron习惯于去冒险。beusedto(doing)sth.习惯于(做)某事,to是介词,后接名词/代词/动名词,be也可换成get,become。risk既可用作可数名词,也可用作不可数名词,意为“风险、冒险”。takerisks冒险attheriskof冒着可能…...的危险e...