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Home / Doubts and Solutions/KARNATAKA/Class 8/Mathematics

        [ii] 2 multiplied x to the power 3 and is multiplied by y to the power -2 and is dived by 8x to the power -2 multiplied  by y to the power 3 . Solve using the 5th law of exponents.
 

Asked by Sushma 28th November 2017, 5:58 PM
Answered by Expert
Answer:
begin mathsize 16px style 2 x cubed cross times fraction numerator y to the power of negative 2 end exponent over denominator 8 x to the power of negative 2 end exponent end fraction cross times y cubed equals 2 over 8 cross times x cubed cross times x squared cross times y to the power of negative 2 end exponent cross times y cubed space space space space space........ left parenthesis fraction numerator 1 over denominator space a end fraction equals a to the power of negative 1 end exponent right parenthesis equals 1 fourth cross times x to the power of 5 cross times y space space space space space space space space space space space space space space......... left parenthesis a to the power of m cross times a to the power of n equals a to the power of m plus n end exponent right parenthesis equals fraction numerator x to the power of 5 y over denominator 4 end fraction end style
Answered by Expert 29th November 2017, 11:03 AM
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