Explain the reasons why programmers these days prefer to use high level programming languages rather than machine language.

$\backslash$table$[[$Major Topic,,$],[$Introduction & Phases of a Compiler,$\backslash$table$[[$Blooms$],[$Deseignation$]],\backslash$table$[[$Score$],[5]]]]$

Obtain the regular expressions for the set $\{b^2,b^5,b^8,b^{11},$dots$\},$ using the appropriate Kleene's closure.

$\backslash$table$[[$Mejer Tepit,Blooms$],[$Resignation$,$Score$],[5,]]$

$"$In a programming language, keywords, constants, identifiers, strings, numbers, operators and punctuations symbols can be considered as tokens".

Identify and explain the five tokens in the variable declaration line in $C$ programming language below:

str value $=$ "Alibaba Corporation";

$\backslash$table$[[$Str value Major Topie,,$],[$Introduction & Phases of a Compiler,$\backslash$table$[[$Bvoms$],[$Desergation$],[$EN$]],\backslash$table$[[$Scorr$],[5]]]]$

You are given the following production rules for a Context$-$free Grammar $($CFG$)$

$SaS|aB|Q{B}_B$

$AaA|a|$

$BbB|{}_{?}|$

Show that the language $L-\{a^n{b}^n$:$n1\}$ can be generated from the above CFG$.$

$\backslash$table$[[$above CFG$.,$ Major Tapic,$\backslash$table$[[$Blooms$],[$Designatios$]],\backslash$table$[[$Scare$],[5]]],[$Context$-$Free Grammars,,$]]$