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spearjj
13.07.2019 •
Mathematics
Problem 3.2.14a
show that 2^2x+1 +1 is divisible by 3.
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Ответ:
The given expression is divisible by 3 for all natural values of x.
Step-by-step explanation:
The given expression is
For x=1,
9 is divisible by 3. So, the given statement is true for x=1.
Assumed that the given statement is true for n=k.
This expression is divisible by 3. So,
For x=k+1
Using equation (1), we get
This expression is also divisible by 3.
Therefore the given expression is divisible by 3 for all natural values of x.
Ответ:
-9ab3a3b-52
Step-by-step explanation:
-8a3b+3a2b2-52+5a2b3a3b+7-9a2b2
-8a3b-6a-52+5a2b3a3b
-14a3b-52+5a2b3a3b
-9ab3a3b-52