The <em><u>correct answer</u></em> is:
vertical angles are congruent
Explanation:
In the proof, we are shown that ∠EDF and ∠ADC are vertical angles. This is because they are opposite each other and share only a vertex.
The vertical angle theorem tells us that vertical angles are congruent; therefore ∠EDF ≅ ∠ADC.
Step-by-step explanation:
Let's assume that
is divisible by 3.
for n= 1
= 3
Hence, P(1) is true for n=1
for n=2
= 9, which is divisible by 3.
As we can see, P(n) is also true for n= 2.
Let's say P(n) is true for n = k
So,
is divisible by 3.
For P(n) should be true, the difference of P(k+1) and P(k) must will have divisible by 3.
So,
as P(k+1)-P(k) is divisible by 3.
As a result, P(n) is true for all n>1.
Yes 17 is prome because its only factors are 1 and 17
Hope this helps... good luckkk :)