Question

(iv) Σ0.4^n find value​

Answer 1

Answer:

12

Step-by-step explanation:

Answer

S1 =a=5

{a= first term, d= common difference}

S2=a+(a+d)=2a+d=2(9)

⇒10+d=18

⇒d=8

⇒A.P:5,13,21,29,.

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