(√2/2)^(-1/2)=(2/√2)^(1/2)=√2^(1/2)(10/7)^1/21.3^(-1/2)=(1/1.3)^(1/2)因为(10/7)^2=100/49>2所以10/7>√2所以10/7>√2>1/1.3指数1/2大于0,所以幂函数y=x^(1/2)是增函数所以(10/7)^1/2>(√2/2)^(-1/2)>1.3^(-1...