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ICSE Class 9 Answered

√(3/5)1-2x=4 17/27 find x

Asked by Sunita | 09 Mar, 2018, 02:51: PM
Expert Answer
begin mathsize 16px style square root of open parentheses 3 over 5 close parentheses to the power of 1 minus 2 straight x end exponent end root equals 4 17 over 27
square root of open parentheses 3 over 5 close parentheses to the power of 1 minus 2 straight x end exponent end root equals 125 over 27
open parentheses 3 over 5 close parentheses to the power of 1 minus 2 straight x end exponent equals open parentheses 5 over 3 close parentheses to the power of 3 cross times 2 end exponent
open parentheses 5 over 3 close parentheses to the power of 2 straight x minus 1 end exponent equals open parentheses 5 over 3 close parentheses to the power of 6 space space space space space space space space space space space space space space space space space space using space straight x to the power of negative 2 end exponent equals 1 over straight x squared
2 straight x minus 1 equals 6
2 straight x equals 7
straight x equals 7 over 2

end style
Answered by Sneha shidid | 09 Mar, 2018, 04:22: PM
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