SECTION B: SHORT} CUBE-BASED QUESTIONS {20 MARKS} Note: Ensure you showr your formulars and working. Also, note that you can represent the following symbols as fol lows: \"for the exponent symbol, x42 instead ofxz; 22 as 23'2; division as /or +3 1 individually as + or -; y'lE as square root of b. Any other symbol that you nd difficult can be typed out in words 2.1 Find the equation of a line that passes through points [2,1] and {5,-6] (4} 2.2 Calculate the distance between two points, {3,4} and {-2,?] {4} 2.3 Eyaluate the limit \"11%{2132 + 1} (4} x_ 221 Differentiate j? = Elly? 3x (4} E 2.5 Find f{2x3+%]dx {4}