Download presentation

Presentation is loading. Please wait.

Published byCheyenne Meas Modified over 3 years ago

1
Using the properties and formula of Aritmetica series and Geometri series

2
INDICATOR Using the properties and formula of Arithmetic series and geometric series

3
WHAT WILL YOU LEARN Using the propertis and formula of aritmetic series and Geometric series

4
Problem 1 :..... 8 cm 2 3 n Based on the figures above, determine : 1 cm 1.The next two stack the figure above 2.The number pattern of the figures according each height respectively 3.The total height of the figures until to 25 th term

5
Exercise 1.In 5 weeks, Mengky has been training to face the marathon competition. Each week he has to run twice time father than the week before in the 3 th week he runs 4 km. Determine the total distance for Mengky in five weeks training. 2.To file the job vacancy, a company hold a selection in many steps.In the first step, there are 240 applicants who join. In the second step there are 200 applicants who join. In the 3 th step there are 160 applicants who join. Determine the total applicants that will join in the 4 th and the 5 th step of selection

6
Given that U 2 =2U 1 n = 5 U 3 = 4km Asked : S 5 ? Solution U 3 = 2U 2 4 = 2U 2 U 2 = 4/2 U 2 =2

7
U 2 =2U 1 2 = 2U 1 U 1 = 2/2 U 1 = 1 So the series : 1+2+4+.... a=1 r = U 2 /U 1 = 2/1 = 2

8
U n =ar n = 1x2 5 = 32

9
Next S n =a(r n -1)/r-1 S 5 =1(2 5 -1)/2-1 = 1(32-1)/1 = 1(31)/1 = 31

10
2.Given that U 1 =240 U 2 =200 U 3 =160 Asked :S 4,S 5 ? Solution U 1 =a =240 Difference (d) d = U 2 -U 1 = 200-240 = -40

11
U n =a+(n-1)d U 4 =240+(4-1)-40 =240+(3)-40 =240-120 =120 U 5 =240 +(5-1)-40 =240+(4)-40 =240-160 =80

12
S n =1/2.n(2a+(n-1)d) S 4 =1/2.4(2x240+(4-1)-40) =2(480+3(-40)) =2(480-120) = 2x360 = 720

13
or S n =1/2.n(a+U n ) S 4 =1/2.4(240+120) = 2(360) = 720

14
S 5 =1/2.(5)(2(240)+(5-1)(-40)) =5/2.(480+4(-40)) =5/2.(480-160) =5/2.(320) =800

15
or S 5 =1/2.(5)(240+80) = 5/2.(320) = 800

Similar presentations

OK

Standard #22.0 12D Geometric Sequences GeometricSequence What if your pay check started at $100 a week and doubled every week. What would your salary.

Standard #22.0 12D Geometric Sequences GeometricSequence What if your pay check started at $100 a week and doubled every week. What would your salary.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on brand marketing solutions Ppt on eia report on oil Ppt on sbi home loan Compress ppt online Ppt on waves physics class 11 Ppt on bluetooth broadcasting software Free download ppt on report writing Ppt on national defence academy Ppt on building information modeling for sustainable design Latest ppt on global warming