Question

If 9^c • 9^d = 1, what must be true about c and d?

List a possible value for c and d.

Answer 1

C=0
D=0
9^0*9^0=1
1*1=1

Answer 2

• c = 0 and d = 0

Step-by-step explanation:

• 
  `9^c *9^d = 1`

• 
  `9^c *9^d = 9^0 * 9^0`

• 
  `9^c *9^d = 9^0 * 9^0` [ taking coefficients ]

• c = 0 and d = 0