The value of `[4^(-1)-5^(-1)]^(-1)` is

The value of [(5^(-1)-6^(-1))^(-1)-(3^(-1)-4^(-1))^(-1)] is

The value of (3 ^(-1) + 4 ^(-1)) ^(-1) div 5 ^(-1) is

1.The value of (-5)^(-4)

If a = (sqrt(5) + sqrt(4))^(-3) and b = (sqrt(5) - sqrt(4))^(-3) , then the value of: (a+1)^(-1) + (b+1)^(-1) is:

Find the value of 4tan^(-1)(1)/(5)-tan^(-1)(1)/(70)+tan^(-1)(1)/(99)

Find the value of 4tan^(-1)((1)/(5))-tan^(-1)((1)/(239))

The value of [(1)/(3)]^(-1)-((1)/(4))^(-7)}+[((1)/(4))^(-1)-((1)/(5))^(-1)]+[((1)/(5))^(-1)-((1)/(6))^(-1)]^(2)] is