Question

for each geometric progression given below ,find the common ratio 'r', and then find an -1,-3,-9,-27​

Answer 1

Step-by-step explanation:

Click here to see ALL problems on Geometric formulas ... Thank you. Found 2 solutions by [email protected], ej_03: ... r is the common ratio given 5, 15, 45 a=5 and r = 3

Answer 2

Answer:

r = 3

Step-by-step explanation:

Common Ratio r = ,

t2/t1 = r

⇒ r = -3/-1

⇒ r= 3

t3/t2  = r

⇒ r = -9/-3

⇒ r = 3

t4/t3 = r

⇒ r = -27/-9

⇒ r = 3