Question

If a = ½ and d = ½ then a₂₀ is *​

Answer 1

Answer:

10

Solution:

We know the formula

→ $\LARGE\mathtt{a_n=a_1+(n-1)d}$

From here

→ $\LARGE\mathtt{a_{20}= \frac{1}{2} +(20-1) \frac{1}{2} }$

→ $\LARGE\mathtt{a_{20}= \frac{1}{2} + \frac{19}{2} }$

→ $\LARGE\mathtt{a_{20}= \frac{20}{2} }$

→ $\LARGE\mathtt{a_{20}= 10}$

$\huge\boxed{\mathtt{Answer = 10}}$