Question

Find the cube-root of 9.261

Answer 1

9.261

= `root(3)(9261/1000)`

= `sqrt((3 xx 3 xx 3 xx 7 xx 7 xx 7)/(10 xx 10 xx 10)`

3	9261
3	3087
3	1029
7	343
7	49
7	7
	1

 

 

 

 

 

 

 

=`(3 xx 7)/(10)`

 = `(21)/(10)`

= 2.1