Is(x2−a2)the same as(x−a)2? If so, would(x2−a2)(x−a)=(x−a)? Question: Is(x2−a2)the same as(x−a)2? If so, would(x2−a2)(x−a)=(x−a)? Binomial Expansion Polynomials with two terms are called binomials, which could be line...
If f(x)=int((2sinx-sin2x)/(x^3)dx); x!=0 then lim(x->0) f^'(x) is: (A) 0 (B) oo (C) -1 (D) 1
If log_3(5) = 3y, log_3(4) = 2x, and log_3(m^2) = 6, then log_3(100m^2) is equivalent to what? Which of the products below is equivalent to sin(4x)+sin(6x)? -2sin(5x)sinx -2sin(5x)cosx -2sin(x)cos(5x) 2cos(x)cos(5x) 2sin(5x)cos(x) ...
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百度试题 结果1 题目πrarasinωxsinisinisinxcosωx+π+x^2+2sin2x⋅π 相关知识点: 试题来源: 解析 Whatare;doing 反馈 收藏
某温度下SO2的转化反应（2SO2+O2⇌2SO3）的平衡常数K=576下面三个混合体系中各物质的浓度如下表： 体系 c（SO2）mol/L c（O2）mol/L c（SO3）mol/L 反应方向 （1） 0.0600 0.400 2.00 （2） 0.0960 0.300 0.500 （3） 0.300 0.0400 1.44 试判断各体系中反应进行的方向：体...
照样子,仿写对话。例: -Whoseha+is+hisin-1+sindy^2sin^2x+sinx (Cindy'si1.(Bob's)2.(Nancy's)3.(Jack's) 相关知识点: 试题来源: 解析 三、1.-Whose pants are these?They're Bob's.2. -Whose skirt is this?It's Nancy's.3. -Whose shoes are these?They're Jack's.解析:根据例句...
百度试题 结果1 题目1/2a+2sinαsinx+sinx+cos(2x+cosα)+⋯2 ___ English is very necessary for us. A)Learn B)Learns C) Learned D)To learn 相关知识点: 试题来源: 解析 2D优质解答 反馈 收藏
Is the following true or false? d^2/dx^2 (x^2cosx) = 2cosx - 4xsinx - x^2cosx Summation (n = 0 to infinity) ((-1)^n)5 by 4^n) = 4. True or false? Summation (n = 1 to infinity) (((-1)^(n-1))(2^(n-1))) by (5^(n-1)) = 5 ...
答案:D解析:∵f(sinx)=2-(1-2sin2x)=1+2sin2x,∴f(cosx)=f(sin2-x)=1+2sin2(2-x)=1+2cos2x=2+cos2x.答案:D 结果四 题目 若f(sinx)=2-cos2x,则f(cosx)等于( ) A. 2-sin2x B. 2+sin2x C. 2-cos2x D. 2+cos2x 答案 D解:∵f(sinx)=2-(1-2sin2x)=1+2sin2x,∴f(x)...