Question

pls solve the question with steps which is in the photo​

Answer 1

Step-by-step explanation:

(11/9)^-7 *(9/11)^-8

(9/11)^7*(9/11)^-8

(9/11)^7+(-8). (by m^n*m^p=m^n+p)

(9/11)^-1

11/9

Answer 2

Answer:

Answer:

Here Both the power is Negative As We know that If powers are negative we have to reciprocal the base

But here we can see that A base is also in it's reciprocal form.

To make it easy we have to solve in this way :

Step-by-step explanation:

(11/9)^-7 × (9/11)^-8

(9/11)^7 × (9/11)^-8

if x is any rational number then:

(x)^a ×(x)^b =(x)^a+b

taking 9/11 as x

(9/11)^7 + (-8)

always remember: + × - = -

(9/11)^7-8

(9/11)^-1

= 11/9