Question

Plzzz solv it fast question 38

Answer 1

3^4x = (81)^-1

3^4x = (3^4)^-1 = (3)^-4

4x = -4

x = -1
again ,

(10)^1/y = 0.0001 = 10^-4

1/y = -4

y = -1/4

now,

2^-x .(16)^y = 2^-(-1).(2^4)^(-1/4)

=2^1 .(2)^{4 × (-1/4)}

=2 .2^-1

= 2/2 = 1 ( answer)

Answer 2

i hope this will usful to u