Question

iii) given a12 = 37, d = 3, find a and s12

Answer 1

Answer:

when solid melts to become liquid there is no change in temperature them what is the use of heat energy supplied

Step-by-step explanation:

when solid melts to become liquid there is no change in temperature them what is the use of heat energy supplied

Answer 2

given that a12 = 37 ,d = 3

As, an = a + ( n - 1 ) d

a12 = a + ( 12 - 1 ) 3

37 = a + 33

a = 4

Sn = n/2 [ a + an ]

Sn = 12 / 2 [ 4 + 37 ]

Sn = 6(41)

Sn = 246 ANS❤️