Use the graph to find the limit (if it exists) `lim_(x to 3)(4-x)`

Use the graph to find the limits (if it exists).If the limit does not exist ,explain why? lim_(xrarr2)f(x) . where f(x)={(4-x,xne2),(0,x=2):}

Use the graph to find the limits (if it exists).If the limit does not exist ,explain why? lim_[xrarr(pi/2)]tanx

Use the graph to find the limits (if it exists).If the limit does not exist ,explain why? lim_(xrarr1)sinpix