n ∈ natural even numbers
Step-by-step explanation:
1 + 3 + 5 + 7 + … + (2n-1)
sum of the first n terms :
Sₙ = n/2(a + Uₙ)
Sₙ = n/2(1 + 2n - 1)
Sₙ = n/2(2n)
Sₙ = n²
∴ so, the solution of n is all natural even numbers

Multiply both sides of the equation by 3.

Subtract 6x on both sides.

Combine 2x and −6x to get −4x.

Add 20 to both sides. Any value plus zero results in its same value.

Divide both sides by −4.

Divide 20 by −4 to get −5.

<h2>{ Pisces04 }</h2>
Answer:
4/10, 6/15, 8/20, and 10/25
Step-by-step explanation:
Hope this helps. :)
Answer:
No it is not.
Step-by-step explanation:
Reason.
For geometric: common ratio r should be equal
r = T2/T1 = T3/T2 but is not true here as -6/-14 is not equal to 2/-6
All of these answers are right