Maths
Example 18 If A.M. and G.M. of two positive numbers a and b are 10 and 8, respectively, find the numbers.
24
Oct
Example 18 If A.M. and G.M. of two positive numbers a and b are 10 and 8, respectively, find the numbers. Example 18 If A.M. and G.M. of two positive numbers a and b are 10 and 8 find the numbers. respectively October 24, 2021 Category: Chapter 9 - Sequences and Series , Maths , [...]
Example17 Insert three numbers between 1 and 256 so that the resulting sequence is a G.P.
24
Oct
Example17 Insert three numbers between 1 and 256 so that the resulting sequence is a G.P. Example17 Insert three numbers between 1 and 256 so that the resulting sequence is a G.P. October 24, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 ,
Example 16 A person has 2 parents, 4 grandparents, 8 great grandparents, and so on. Find the number of his ancestors during the ten generations preceding his own.
24
Oct
Example 16 A person has 2 parents, 4 grandparents, 8 great grandparents, and so on. Find the number of his ancestors during the ten generations preceding his own. 4 grandparents 8 great grandparents and so on. Find the number of his ancestors during the ten generations preceding his own. Example 16 A person has 2 [...]
Example 3 Line through the points (–2, 6) and (4, 8) is perpendicular to the line through the points (8, 12) and (x, 24). Find the value of x.
27
Oct
Example 3 Line through the points (–2, 6) and (4, 8) is perpendicular to the line through the points (8, 12) and (x, 24). Find the value of x. 12) and (x 24). Find the value of x. 6) and (4 8) is perpendicular to the line through the points (8 Example 3 Line through [...]
Example 1 Find the slope of the lines: (a) Passing through the points (3, – 2) and (–1, 4), (b) Passing through the points (3, – 2) and (7, – 2), (c) Passing through the points (3, – 2) and (3, 4), (d) Making inclination of 60° with the positive direction of x-axis
27
Oct
Example 1 Find the slope of the lines: (a) Passing through the points (3, – 2) and (–1, 4), (b) Passing through the points (3, – 2) and (7, – 2), (c) Passing through the points (3, – 2) and (3, 4), (d) Making inclination of 60° with the positive direction of x-axis -2) and [...]
Example 10 Find the equation of the line, which makes intercepts –3 and 2 on the x- and y-axes respectively
27
Oct
Example 10 Find the equation of the line, which makes intercepts –3 and 2 on the x- and y-axes respectively Example 10 Find the equation of the line which makes intercepts –3 and 2 on the x- and y-axes respectively October 27, 2021 Category: Chapter 10 - Straight Lines , Maths , NCERT Exemplar Class [...]
Example 2 If the angle between two lines is π/4 and slope of one of the lines is 1/2 , find the slope of the other line.
27
Oct
Example 2 If the angle between two lines is π/4 and slope of one of the lines is 1/2 , find the slope of the other line. Example 2 If the angle between two lines is π/4 and slope of one of the lines is 1/2 find the slope of the other line. October 27, [...]
Example 14 The sum of first three terms of a G.P. is 13/12 and their product is – 1. Find the common ratio and the terms.
24
Oct
Example 14 The sum of first three terms of a G.P. is 13/12 and their product is – 1. Find the common ratio and the terms. Example 14 The sum of first three terms of a G.P. is 13/12 and their product is – 1. Find the common ratio and the terms. October 24, 2021 [...]
Example 13 How many terms of the G.P. 3, 3/2, 3/4 ,,… are needed to give the sum 3069/512 ?
24
Oct
Example 13 How many terms of the G.P. 3, 3/2, 3/4 ,,… are needed to give the sum 3069/512 ? – 3/2 –3/4 ... are needed to give the sum 3069/512 ? Example 13 How many terms of the G.P. 3 October 24, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT [...]
Example12 Find the sum of first n terms and the sum of first 5 terms of the geometric series 1 + 2/3 + 4/9 + …….
24
Oct
Example12 Find the sum of first n terms and the sum of first 5 terms of the geometric series 1 + 2/3 + 4/9 + ……. Example12 Find the sum of first n terms and the sum of first 5 terms of the geometric series 1 + 2/3 + 4/9 + ....... October 24, 2021 [...]