Advertisements
Advertisements
प्रश्न
Find the 10th term of the G.P. :
`12, 4, 1 1/3, ................`
योग
उत्तर
Given G.P. : `12, 4, 1 1/3, ................`
Here,
Fisrt term, a = 12
Common ratio, r = `4/12 = 1/3`
Now, Tn = arn – 1
`\implies` T10 = `12xx(1/3)^9`
= `12 xx 1/19683`
= `4/6561`
shaalaa.com
Geometric Progression - Finding Sum of Their First ‘N’ Terms
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Find the seventh term of the G.P. :
`1, sqrt(3), 3, 3sqrt(3), ............`
A boy spends Rs. 10 on first day, Rs. 20 on second day, Rs. 40 on third day and so on. Find how much, in all, will he spend in 12 days?
Q 10.3
Find how many terms of G.P. `2/9 - 1/3 + 1/2` ......... must be added to get the sum equal to `55/72`?
Q 1.2
Q 1.3
Q 1.4
Q 3.2
Q 4
15, 30, 60, 120.... are in G.P. (Geometric Progression):
- Find the nth term of this G.P. in terms of n.
- How many terms of the above G.P. will give the sum 945?