Question

9^11+11^9 is divisible by​

Answer 1

Answer:99

Step-by-step explanation:

Answer 2

Answer:

10

Step-by-step explanation:

$9^1^1+11^9$

So, now let us find the value in the unit digit of $9^1^1$ and $11^9$:-

for $9^1^1$ it is 9 (based on periodicity)

for $11^9$ it is 1  (based on periodicity)

Therefore, 9+1=10 which shows that $9^1^1+11^9$ is divisible by 10.

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