Question

if 9 ,×,×49 are in proportion , find the value of ×
hint. ײ= ( 9 × 49 ) = ( 3 ² × 7 ² ) = ( 3× 7) ² = ( 21) ² ​

Answer 1

Answer:

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9:x::x:49

x×x= 49×9

x^2= 441

x= √441

x= 21

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Answer 2

Answer:

I hope this answer is help full