Question in the picture

1) Pre-calculus: Evaluate by providing a numerical solution or simplify the expression where possible, otherwise expand the summation or formula listing all relevant terms: 10 a ) t b) In {explal} = log le"} 1=0 3 C) " ? X ? + 2 [ EXX. O = E i=1 = 1 j=1; i+j j = 1 k = 1 d) explal/ exp[bx] = ed / e bx e) (x + y) 3 f) In[1 + x] for x small (How small is small?)