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Geometric Progression - 1
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Basics of Geometric Progression

## Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
Engineer by degree Mathematician by Heart. Having 22 years of teaching experience. Search me on Youtube for more videos.

U
M
Sir it would have been better if you had explained the lessons in this course in Hindi.
Bharat Gupta
4 months ago
Now I am working all course in hindi
Sambit Ghosh
4 months ago
Sir have u made this course in Hindi?
1. SEQUENCE AND SERIES Class -(6 (Geometric Proqression)

2. GEOMETRIC PROGRESSION A sequence (finite or infinite) of non-zero numbers in which every term, except the first one, bears a constant ratio with its preceding term, is called a geometric progression, abbreviated as G.P. The constant ratio is usually denoted by r and is called the common ratio of the G.P. i Binee

3. nth term of an Geometric Progression 2 a n-l Point to remember 1. If a is the first term and r is the common ratio of a G. ., then the G.P. can be written as n-I a,ar, ar , or?- - , OT , -- . (ato)

4. Point to remember 2. Choosing number in G.P. 2 3. Three number a, b and c are in G.P. if 2 b ac

5. Sum of n term of an Geometric Progression RY3tJuw.za rah. ONwo n ,

6. Sum of infinite term of an Geometric Progression =

7. Properties of Geometric Progression av LA @g- or," an

8. Properties of Geometric Progression on bi

9. Properties of Geometric Progression bath endo a, a a a as ag lor e na, 9, 16, 32, 6, 128

10. Properties of Geometric Progression

11. If 5th and 8th terms of a G.P. are 32 and 256 respectively, then the 4th term of the G.P. is (a) 8 (b) 12 (c) 16 (d) 20 and Com non s = are =32 - dvide aru32 Tu= a.rs 2

12. The 3rd term of a G. P. is the square of the first term. If the second term is 8, then the 6th term is (a) 128(b) 64 (c) 32 (d) none of these. T. 2 T. -r ~2- 2 128