Q. The quotient of 4m35m4 and 5m6m is equal to my. What is the value of y ?
Convert roots to exponents: We need to find the quotient of two expressions: (5m4)/(4m3) and (m)/(5m6). First, let's simplify each expression separately by converting the roots to fractional exponents.
Simplify first expression: The fifth root of m4 can be written as m(4/5). Similarly, the fourth root of m3 can be written as m(3/4).So, the first expression becomes m(4/5)/m(3/4).
Subtract exponents: To divide two expressions with the same base, we subtract the exponents: m54−43. To subtract these fractions, we need a common denominator, which is 20. So, we rewrite the exponents as m2016−2015=m201.
Simplify second expression: Now, let's simplify the second expression. The square root of m is m1/2, and the fifth root of m6 is m6/5.So, the second expression becomes m1/2/m6/5.
Subtract exponents: Again, to divide two expressions with the same base, we subtract the exponents: m(1/2−6/5). We need a common denominator, which is 10. So, we rewrite the exponents as m(5/10−12/10)=m(−7/10).
Find quotient: Now we need to find the quotient of the two simplified expressions: m201/m−107. To divide these, we subtract the exponents: m201−(−107).
Subtract exponents: We need a common denominator to subtract these fractions, which is 20. So, we rewrite the exponents as m(1/20)−(−14/20)=m1/20+14/20=m15/20.
Simplify exponent: We can simplify the exponent 2015 by dividing both the numerator and the denominator by their greatest common divisor, which is 5. So, m2015 simplifies to m43.
Final result: We have found that the quotient of the two expressions simplifies to m43. Therefore, the value of y in the expression my is 43.
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