Laplace transform of $$f\left( x \right) = \cos \,h\left( {ax} \right)$$ is

In quadrantal bearing system, bearing of a line varies from

An agricultural land of 437ha is to be irrigated for a particular crop. The base period of the crop is 90 days and the total depth of water required by the crop is 105cm. If a rainfall of 15cm occurs during the base period, the duty of irrigation water is

For limit state of collapse, the partial safety factors recommended by IS 456:2000 for estimating the design strength of concrete and reinforcing steel are respectively