Find the Domain 5x^(2y)=30
Problem
Solution
Isolate the exponential term by dividing both sides of the equation by 5.
Apply the natural logarithm to both sides to bring the variables out of the exponent.
Use the power rule of logarithms,
ln(ab)=b*ln(a) to rewrite the left side.
Identify the restriction on the logarithmic function
ln(x) which requires the argument to be strictly greater than zero.
Identify the restriction on the base of the exponential expression
x(2*y) For the expression to be defined for all real values of2*y the basex must be positive.
Check for values that would make the equation impossible. If
x=1 the equation becomes1(2*y)=6 which simplifies to1 = 6.S*i*n*c*e*t*h*i*s(i)*s(a)*c*o*n*t*r*a*d(i)*c*t*i*o*n, $ cannot be 1.
Combine the conditions to define the domain for
x
Final Answer
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