Question

find the 10th term of negative 15 negative 18 negative 21

Answer 1

AP IS - 15,-18,-21

A1 IS - 15
D IS - 18 +-15=-33

A10=A+9D= - 15+9X-33
=-15 +297=282

Answer 2

hey........

.find 10th term

A.P = - 15 , - 18 , - 21

a1 ===》 -15

d ===》( - 18 ) + ( - 15 ) == - 33

a10 = a + 9d = ( - 15 ) + 9 × ( - 33 )

= ( - 15 + 297 ) = 282
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i hope this helps u.
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