please help me to solve this question
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LHS = (7+3√5)/(3+√5)-(7-3√5)/(3-√5)
By taking LCM
= [(7+3√5)(3+√5)-(7-3√5)(3-√5)]/[(3+√5)(3-√5)]
= [21+7√5+9√5+15-(21-7√5-9√5+15) ]/[ 3² - ( √5 )² ]
= [ 36 + 16√5 - 36 + 16√5 ]/( 9 - 5 )
= 32√5/4
= 8√5
= 0 + 8√5 -----( 1 )
= a + b√5-----( 2 ) [ RHS ]
Compare ( 1 ) and ( 2 ) ,we get
a = 0 ,
b = 8
I hope this will help you
By taking LCM
= [(7+3√5)(3+√5)-(7-3√5)(3-√5)]/[(3+√5)(3-√5)]
= [21+7√5+9√5+15-(21-7√5-9√5+15) ]/[ 3² - ( √5 )² ]
= [ 36 + 16√5 - 36 + 16√5 ]/( 9 - 5 )
= 32√5/4
= 8√5
= 0 + 8√5 -----( 1 )
= a + b√5-----( 2 ) [ RHS ]
Compare ( 1 ) and ( 2 ) ,we get
a = 0 ,
b = 8
I hope this will help you
ashish55587:
is my solution is right
then plz mark is as branlist plz..,
your answer is correct
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Answer: i hope it is helpful
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