Question

For a sequence tn = n + 2, find first four terms​

Answer 1

Answer:

1. First term = 3
2. Second term = 4
3. Third term = 5
4. Fourth term = 6

Step-by-step explanation:

Given that:

• tₙ = n + 2

To Find:

• First four terms.

Which are:

1. First term
2. Second term
3. Third term
4. Fourth term

Concept:

• For finding all these following terms we have to substitute the value of n as the number of terms which we are going to find.

Finding the first term:

⟶ a₁ = 1 + 2

⟶ a₁ = 3

∴ First term = 3

Finding the second term:

⟶ a₂ = 2 + 2

⟶ a₂ = 4

∴ Second term = 4

Finding the third term:

⟶ a₃ = 3 + 2

⟶ a₃ = 5

∴ Third term = 5

Finding the fourth term:

⟶ a₄ = 4 + 2

⟶ a₄ = 6

∴ Fourth term = 6

More to know:

Formulae used in an A.P.

1. aₙ = a + (n - 1)d
2. Sₙ = {n (2a + (n - 1)d}/2
3. Sₙ = {n(a + l)}/2

Where,

• aₙ = nth term
• a = First term
• n = Number of terms
• d = Common difference
• Sₙ = Sum of nth terms
• l = Last term

Answer 2

Step-by-step explanation:

$\tt t_n = n + 2$

• $\sf t_n = nth\: term \ of\ arthematic\ \ progression$
• $\sf We\ have\ to\ find\ first\ four\ terms$
• Put n = 1,2,3,4 to find the first four terms

$\tt t_1 = 1 + 2 = 3$

$\tt t_2 = 2 + 2= 4$

$\tt t_3 = 3 + 2= 5$

$\tt t_4 = 4 + 2= 6$