explain what is meant by "big data". write three examples for big data.

What is wi-fi infrastructure? a metropolitan area network that uses radio signals to transmit and receive data a communications technology aimed at providing high-speed wireless data over metropolitan area networks a means by which portable devices can connect wirelessly to a local area network, using access points that send and receive data via radio waves includes the inner workings of a wi-fi service or utility, including the signal transmitters, towers, or poles and additional equipment required to send out a wi-fi signal

Verify each identity[tex] \frac{csc}{cot \: x \: + \: tan \: x} = cos \: x[/tex]

Consider the usual algorithm to convert an infix expression to a postfix expression. suppose that you have read 10 input characters during a conversion and that the stack now contains these symbols: (5 points) | | | + | | ( | bottom |_*_| now, suppose that you read and process the 11th symbol of the input. draw the stack for the case where the 11th symbol is