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(7 - 4√3)^x + (7 + 4√3)^x = 14 Where x Then x = ?

(7 - 4√3)^x + (7 + 4√3)^x = 14
Where x
Then x = ?
 

Grade:10

1 Answers

AKSHANSH PAREEK
68 Points
5 years ago
write 14 as 7+7 and add and subtract 4root3 and make it in form of LHS you will see that x=1
RHS
14
7+7 +43^0.5-43^0.5
7+43^0.5 + 7+43^0.5
now compare from LHS
x=1
 

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