Sine of negative pi over four, which we've already seen is negative square root of two over two. And so this is going to be equal to one over one minus square root of two times the negative square root of two over two. So negative negative, you get a positive. Square root of two times square root of two is two over two is gonna be one. So this is going to be equal to 1 1 2. And so, I wanna be very clear. This expression is not the same thing as this expression.