If g. c. d (a, b) = 18, 1. c. m. (a, b) …….

43

If g. c. d (a, b) = 1, then g. c. d (a — b, a b) = ………

43

1f n > 1, n⁴ + 4 is. n E N

43

has …. digits after decimal point.

43

The decimal expansion of will terminate after …….. digits.