为什么sqr(x^3+1)-sqr(x^3) =……sqr(x^3+1)-sqr(x^3) =1/(sqr(x^3+1)+sqr(x^3))

为什么sqr(x^3+1)-sqr(x^3) =……sqr(x^3+1)-sqr(x^3) =1/(sqr(x^3+1)+sqr(x^3)) 请问 #define sqr(x) x*x sqr(k+m)/sqr(k+m)为什么结果是7 lim((sqr(2)-sqr(1+cosx))/((sinx)^2)) x->0 求sqr(x-3)+sqr(12-3x)的值域(sqr是平方根的意思) y=4*sqr(x-1)+3*sqr(5-x)的最小值 请问 #define sqr(x) x*x K=2,M=1 sqr(k+m)/sqr(k+m)为什么结果是7 请问sqr(1+sqr(2+sqr(3+sqr(4+sqr(5+sqr(6+.sqr(1+sqr(2+sqr(3+sqr(4+sqr(5+sqr(6+.一直到n...如何在vb实现..... 不定积分x^3/sqr(1+x^2)^3 dx 积分∫x^3*sqr(1-x^2)dx y=6-x+sqr(3x-1)的值域 三道积分问题~ (1) S sqr (x^2(1) S sqr (x^2-25)/x dx =?(2) S 1/(X sqr(x^2+1)) dx =?(3) S x/(sqr(x^2+4x+13)) dx =? 怎么该级数收敛发散∞ ∑ sqr(x^3+1)-sqr(x^3) x=0 #define SQR(X) X*X #include void main(){ int a=16,k=2,b=4,m=1 ; a/=SQR(k+m)/SQR(k+m); pri#define SQR(X) X*X#include void main(){int a=16,k=2,b=4,m=1 ;a/=SQR(k+m)/SQR(k+m); printf(%d ,a); }为什么? f(x)=sqr(2*x-6)+sqr(18-3*x)求f(x)的最大值 1+1/sqr(2)+1/sqr(3)+1/sqr(4)+.+1/sqr(n)=? 求值域:y=1/(sqr(4-x)-sqr(x-2)) 求y=sqr(2x+2)+sqr(1-x)的值域RT (求值域) sqr(4-x)+sqr(x-2)如题求值域