Question

If for a G. P. t6/t3 =1458/54 then r = ?
A) 3
B) 2
C) 1
D) -1




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Answer 1

Step-by-step explanation:

tn = ar^n-1

t6 = ar⁵

t3 = ar²

t6. ar⁵. 1458

---- = ------- = ----------

t3. ar². 54

r⁵. 1458

---. =-----------

r². 54

r³ = 27

r³ = 3³

r = 3