Question

what shall we get the answer for Q6 and Q7​

Answer 1

Answer:

1. d) 1/6561           2. b)9

Step-by-step explanation:

1. d)9^2=81

(81/81)^2

(1)^2*9^-4

=1/6561

2. b) any number to the power 0 is 1

(7^0+8^0+9^0)^2

(1+1+1)^2

(3)^2

=9

Answer 2

Answer:

6.6561

7.1/9

Step-by-step explanation:

6. (9^2÷9^-2)^2*9^-4

=[9^2-(-2)]^2*9^-4

=[9^2+2]^2*9^-4

=(9^4)^2*9^-4

=9^8*9^-4

=9^8+(-4)

=9^8-4

=9^4

=6561

7. (7^0+8^0+9^0)^-2

=(1+1+1)^-2

=3^-2

=1/3^2

=1/9