 ok guys so again another day with one more question i said it in a joke so the question has been raised let's see what is it saying this is a very big thing it has to be equal to three small things and one big thing if it was a plus then i would have taken 111 and worked here the subtraction is showing so i will take 0,1 or 2 why i am not taking minus 1,0 or 1 see here even power is showing minus 1 or 1 value will be same and in finite case it will reach so i am solving the question of 0,1 or 2 if i keep it as 0 then this thing will disappear clear 0,1 or something clear now comes y 1 to the power 4 is 1 upon y square minus x square so 0 1 out of 1 1 out of 4 so minus 3 so 2 to the power 4 was 16 with plus below z square 4 minus 0 is 4 and z square 4 minus 1 is 3 no doubt in denominator we took minus 3 into 12 in numerator 12 plus or minus minus 48 you can see in denominator minus 36 in denominator minus 36 smiling positive 1 is one answer how good it is did you enjoy it thank you very much for your time thanks a lot