Question

Find the 20 term of the Arithmetic progression 10, 7, 4, .....?​

Answer 1

$\huge \mathscr{\orange {\underline{\pink{\underline {Answer:-}}}}}$

A20 = a + 19d

D = A2 - A

= 7 - 10

= - 3

A = 10

Therefore,

A20 = 10 + 19( - 3 )

= - 47

Answer 2

A20=10+19(_3)=_47 *********