5!3! means 5(factorial)3(factorial) factorial means to mutiply by everything down to 1...so for example 6! = 6x5x4x3x2x1 So 5!3! means 3) 5x4x3x2x1x3x2x1 ??
i dont know..
Your answer is 7^(- 2) or
or
Try using either the app the calculater not like those other ones this calculator can solve fractions and almost any other thing
