Question

If 3to the power 4x=(81)to the power-1 and (10)to the power 1/y,find the value of 2 to the power -x.(16)to the power y.​

Answer 1

Answer:

$3 {}^{4x} = 81 {}^{ - 1}$

or,

${3}^{4x} = 3 {}^{ - 4}$

or,

$4x = - 1$

or,

$x = - 1$

or,

$2 {}^{ - x} = 2 {}^{ + 1}$

=2