Question

if 3x-1=81 and 4y+1=16,find the value of 1/x-1/y​

Answer 1

Given,

3

4x

=(81)

−1

3

4x

=(3

4

)

−1

3

4x

=3

−4

By comparing powers

4x=−4

∴x=−1

10

y

1

=0.0001

10

y

1

=10

−4

By comparing powers

y

1

=−4

∴y=−

4

1

Now 2

−x+4y

=2

−(−1)+4(−

4

1

)

=2

1−1

=2

0

=1

Answer 2

Step-by-step explanation:

here is your answer friend