Math, asked by rithwick9345, 1 year ago

Check weather -56 is a term ofan A.P:14,9,4,-1....

Answers

Answered by dhillonrobin
14
SAT SHRI AKAAL JII ✊✊✊…

TUHADI SAHAYATA VICH ASSI HAJAR HAN JII ✊✊✊…

A.P. : 14 , 9 , 4 , -1 , ……

a = 14 , d = - 5 .

a n = a + ( n - 1 ) × d

- 56 = 14 + ( n - 1 ) × ( - 5 )

- 70 = ( n - 1 ) × ( - 5 )

- 70
----- = ( n - 1 )
- 5

1 4 = n - 1

n = 15


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