1) The approximate value of 3√122√28+2√21√98 is : A) 1.0605 B) 1.0727 C) 1.6007 D) 1.6026 Answer: Option AExplanation:3√122√28×√982√21=3√3×42√7×4×√49×22√21=6√34√7×7√22√21=21√64√7×21=21√628√3=34√2=34×1.414=3×0.3535=1.0605