下面的JavaScript代码，运行输出结果是（）。 function f(y) { var x=y*y; return x; } zhi=f(2); document.write(zhi)

已知N*N的图像f(x,y)的傅立叶变换为F(u,v),则的傅立叶变换是:data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALQAAAAgCAYAAAC7OlJnAAAJPElEQVR4Xu2bB6w9RRXGfyiIIkoHRZEA0gkqKGADqRFCExBQmgmiIBaK2AAFFCyggEqRGkCqVDVKCRBFE5RgBEORYlcsqNiVEsnPnIHNZsvs3b3vXl/uJP/k/97bnTlz5ptzvvPN7ALM2swD88gD

已知函数f(x)=acos2x-bsinxcosx-a2的最大值为12，且f(π3)=34，则f(-π3)=（　　） A: 12 B: -34 C: -12或34 D: 0或-34

为什么f(36)等于f(4*9)等于f(4)加f(9)

data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA+EAAAAoCAYAAACRtvsHAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAABy5SURBVHhe7Z1PiBzFF8drf6eAoEJQwYiK7q4YA8Z40clBMAfZhIQcNKgguZjZCEpWYg7C5iAJ5hCFXTxo1lxyMiQeloTs4sGAh2yCB40QEpIdRCUG48WIC

data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAawAAAAwCAYAAABNG04gAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAAEnQAABJ0Ad5mH3gAAAmdSURBVHhe7Z09dqs6EMfHbxVvASZFTlZAVmCncZU2HS7tJl3KdLfBpd2lTeUmsAJ7BT4pgvfC0wgRY1uAxJfhvv/vHG5sDIxGjDTSaOCOYgEBAAAAPecf9

设f(x)=2x+2(-1≤x＜0)-12x(0＜x＜2)则f(f(f(-34)))的值为______．

data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAjUAAAA8CAYAAACehUt5AAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAABroSURBVHhe7Z1ZiB1FF4Br/pcYxY2IQSMqmkTUiBu4jKC4gCSi+KKoIL7oRCFiRIUoIyIGDagwQUGNvoSAEfVBIs4gqKCQiQrRiBqJE0UlCiMGo+D2NH9/N

data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA3QAAADWCAYAAACZrMDDAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAFSYSURBVHhe7b1pjGXVdbe/O+8rRUqEcWN/iByCLKhGmCEgzKQqQDL5m6Yby2pkoJmkoGBVMYnGYMAMVv4IbGgax93EA90ykbEMzWSBUKgytl4suemWGewYG

f(x)在[0,1]上有连续的二阶导数，f(0)=f(1)=0,任意x属于[0,...715af2ac3f81f8.png"]