Grade 11AlgebraThe value of √(log20.5 4) is 1) -2 2) -4 (in root) 3) 2 4) None of these Vishrant Vasavada 16 Years agoGrade 11
askiitian.expert- chandra sekhar16 Years agoHi Vishrant, The value of √ should always be positive √(x2) =|x| Therefore the answer is 2
Badiuddin askIITians.ismu Expert16 Years agohi Vishant you should remember that √(a2)=|a| so √(log20.5 4)=|log0.5 4| =|log2-1 22| =|-2 log22| =2 log22 =2 { sinse we know logaa=1} so option 3 is correct