You can put this solution on YOUR website! I think you mean "in radian form". Radicals have nothing to do with this problem. To convert degrees to radians we use the fact that a complete circle, in degrees, is 360. A complete circle, in radians, is . So
360 degrees = radians
Dividing both sides of this by 2 we get:
180 degrees = radians
Dividing both sides by 180 we get:
1 degree = radians
This equation tells us that degrees can be converted to radians by multiplying the number of degrees by . Using this on your expression we get:
which simplifies to: