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jenyasd209 [6]
3 years ago
5

Find all x ∈ Z satisfying each of the following equations.3x = 2 (mod 7)

Mathematics
1 answer:
Vlada [557]3 years ago
5 0

Answer:

7x−3=7k,x=7k+3,k∈ℤ

Step-by-step explanation:

3x ≡ 2 (mod 7)

3 is a solution, since 3×3−2=7.

All solutions are 3+7ℤ

y=3x−2/7=3(x−3)+7/7=3(x−3)/7+1

7x−3=7k,x=7k+3,k∈ℤ

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andreev551 [17]

Answer:

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pishuonlain [190]

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kondaur [170]
f will be increasing on the intervals where f'(x)>0 and decreasing wherever f'(x). Local extrema occur when f'(x)=0 and the sign of f'(x) changes to either side of that point.

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