请仔细观察下面的图片,根据所给提示和要求写一篇英语短文。x=3+2sin2x提示:(1)What are the two men doing in the picture?(2)What should you do when you see people do something like this?(3)Why?要求:(1)文中不得出现真实姓名和学校名称(2)词数80左右(开头已给出,不计入总词数)。I can see...
What does (2cos(2x))/sin(2x) equal to? -6 - 7y =17 What does y equal? What does e^x equal? If (a^2 + 2ab + b^2)(a + b) = 125 what does (a + b) equal? What does y equal if 3(4 - y) is strictly greater than 9?
(a) 1-2 sin^2 (x) (b) cos^2(x) - sin^2(x) (c) 2 cos^2(x)-1 (d) 2 sin (x) cos(x) Which of the following expressions is equal to \sin(2x)? \displaystyle a) 2(1 - \cos^2(x)) \b) \frac{1}{2}(1 - \sin^2(x)) \c) \frac{1}{2}\sin(x)\cos(x) \...
Finish the sentences.∫_0^(π/2)(sin^2x)/(sin^2x+1)⋅cos^21. Annn a is a good girl. She___her homework.2. Susan and I___chess in the evening.3. Mum and Dad go to the park every Saturday. They___books in the park.∴1/3*1/3*1/3*1/3*1/3*1/3*1/3*1/3*1/...
y=sin^(-1)(x/2)+cos^(-1)(x/2) then find the value of [dy/dx](x=1) 01:16 if f(x)=xtan^(-1)(x) then find the value of f'(1)= 04:25 If f(x)=xinx then f'((pi)/2) is equal to 01:45 find derivative of log9x^2 03:42 It is given that f'(a) exists then...
百度试题 结果1 题目f(x)=sin^2x Look and write.(看一看,写一写) A: What can you do? B: I can . 相关知识点: 试题来源: 解析 1、 catch a ball 反馈 收藏
sin((1/2)cos^(-1)(4/5)) is equal to what? (6x+3x+2x+21x+45x)/(43x +89x-4x -21x+ 45x) What's another way to write 8 \frac{3}{4}? Given that \int_0^1 3x \sqrt{x^2 + 4}dx = 5\sqrt{5} - 8, what is \int_1^0 u \sqrt{u^2 + 4}du = ? \frac{dr}{d...
If 2ycosθ=xsinθ and 2xsecθ−ycosecθ=3, then x2+4y2=? View Solution PUNEET DOGRA-TRIGONOMETRY-PREV YEAR QUESTIONS If tan A=1//2andtanB=1//3, then what is the value of 4A +4B ? 02:42 What is (sinx)/(1+cosx)+(1+cosx)/(sinx) equal to ? 01:24 What is the value...
A.He will do his homework.B.He will go shopping with his mum.C.He will go to the library to borrow some books.10.Why is Amy late? A.Because she is ill. B.Because she likes sleeping. C.Because her father isn’t at home.听长对话选答案听对话,回答以下各小题。 11.What food ...
If sin(x) = 1/4, what is sin(2x)? If sin(x) = 3/8, what is sin(2x)? How do you simplify cos(2x)? Which of the following expressions is equal to \sin(2x)? \displaystyle a) 2(1 - \cos^2(x)) \b) \frac{1}{2}(1 - \sin^2(x)) \c) \frac{1}{2}\sin(x)\cos...