Question

Next two terms in the ap-10,-7½ are

Answer 1

Step-by-step explanation:

first term (a)= -10

second term is -7½= -15/2

so difference is -15/2-(-10)=5/2

third term is a+2d and fourth term is a+3d

$a + 2d = - 10 +( 2 \times 5) \div 2| = - 5$

$a + 3d = - 10 + (3 \times 5) \div 2 = \frac{ - 5} {2}$