Given ABC = - 1, try to find (square of a △ a ^ 2B ^ 2 + A ^ 2 + 1) + (b ^ 2 △ B ^ 2C ^ 2 + B ^ 2 + 1) + (C ^ 2 △ C ^ 2A ^ 2 + C ^ 2)+ Given ABC = - 1, try to find the value of (square of a △ a ^ 2B ^ 2 + A ^ 2 + 1) + (b ^ 2 △ B ^ 2C ^ 2 + B ^ 2 + 1) + (C ^ 2 △ C ^ 2A ^ 2 + C ^ 2 + 1)

Given ABC = - 1, try to find (square of a △ a ^ 2B ^ 2 + A ^ 2 + 1) + (b ^ 2 △ B ^ 2C ^ 2 + B ^ 2 + 1) + (C ^ 2 △ C ^ 2A ^ 2 + C ^ 2)+ Given ABC = - 1, try to find the value of (square of a △ a ^ 2B ^ 2 + A ^ 2 + 1) + (b ^ 2 △ B ^ 2C ^ 2 + B ^ 2 + 1) + (C ^ 2 △ C ^ 2A ^ 2 + C ^ 2 + 1)

You can use the assignment method, so that two of them are 1, the other is - 1, and substitute them to get the value of 1