Answer:
-20x 87y
Step-by-step explanation:
Answer:
18a +9
Step-by-step explanation:
9 (2a + 1)
Distribute the 9
9*2a + 9*1
18a +9
The third term of the geometric progression will be 1 / 27 with common ratio 2 / 3.
We are given that:
2nd term of geometric progression = 1 / 18
5th term = 4 / 243
Now, we can also write it as:
2nd term = a r ( where r is the common ratio and a is the initial term.)
a r = 1 / 18
5th term = a r⁴
a r⁴ = 4 / 243
Now divide 5th term by 2nd term, we get that:
a r⁴ / a r = ( 4 / 243 ) / ( 1 / 18 )
r³ = 72 / 243
r³ = 8 / 27
r = ∛ (8 / 27)
r = 2 / 3
3rd term = a r²
a r² = a r × r
= 1 / 18 × 2 / 3
3rd term = 1 / 27
Therefore, the third term of the geometric progression will be 1 / 27 with common ratio 2 / 3.
Learn more about geometric progression here:
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Your question was incomplete. Please refer the content below:
The 2nd and 5th term of a GP are 1/18 and 4/243 respectively find the 3rd term
It would look like this: O=C=O
Hope this helps you out.
Note that
a² - b² = (a+b)(a-b)
i² = -1 by definition.
We want to factorize x² + 36 = x² + 6².
Consider the expression
x² - (6i)² = x² - (6²)(i²) = x² - 36i² = x² + 36
Because x² - (6i)² = (x + 6i)(x - 6i)
Therefore
x² + 36 = (x + 6i)(x - 6i)
Answer: (x + 6i)(x - 6i)
