Question

which term of the A. P. 4,7,10,...., is 64

Answer 1

Answer:

To find which term of Ap is 64

solution:::::::::::::

$\large{</strong><strong>An</strong><strong>=</strong><strong>a</strong><strong>(</strong><strong>n-1</strong><strong>)</strong><strong>d</strong><strong>}$

a=first term

d=common diffrence

$\large{</strong><strong>6</strong><strong>4</strong><strong>=</strong><strong>4</strong><strong>+</strong><strong>(</strong><strong>n-1</strong><strong>)</strong><strong>3</strong><strong>}$

$\large{</strong><strong>6</strong><strong>0</strong><strong>/</strong><strong>3</strong><strong>=</strong><strong>(</strong><strong>n-1</strong><strong>)</strong><strong>}$

$\large{</strong><strong>2</strong><strong>0</strong><strong>+</strong><strong>1</strong><strong>=</strong><strong>n</strong><strong>}$

$\large{</strong><strong>2</strong><strong>1</strong><strong>=</strong><strong>n</strong><strong>}$

21th term is 64

Answer 2

Answer:

Step-by-step explanation: