Current location - Training Enrollment Network - Mathematics courses - Please answer the math review questions for the 2008 college entrance examination.
Please answer the math review questions for the 2008 college entrance examination.
[- 1/2, 1/2] Solve the problem as follows.

The distance from the center (0,0) of x square +y square = 1 to the straight line ax+by= 1 is: the absolute value of 0+0- 1/the square of a under the radical sign+the square of b = 1 greater than or equal to the square of a multiplied by the square of b under the radical sign, and