prove that 6 is a mean proportion between 6 and 9
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Solution :
**************************************
Mean Proportional ;
If 'x' is Mean proportion of 'a'
and 'b' . Then
a : x = x : b
=> x² = ab
=> x = √ab
****************************************
Here ,
a = 4 , b = 9
=> mean proportion = √4 × 9
= √36
= √6²
= 6
••••••
**************************************
Mean Proportional ;
If 'x' is Mean proportion of 'a'
and 'b' . Then
a : x = x : b
=> x² = ab
=> x = √ab
****************************************
Here ,
a = 4 , b = 9
=> mean proportion = √4 × 9
= √36
= √6²
= 6
••••••
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