## Find the eqaaution of the line which intersect the lines

Question:-  Find the eqaaution of the line which intersect the lines and passes through the point (1, 1, 1) Solution:- Let dr’s of the line (a, b, c) and Equation of line passes through the point P(1, 1, 1) .  .  . (i) Let line .  .  .(ii) and lline .  .  .(iii) Let point … Read more

## Jaspal Singh repays his total loan Rs 1,18,000 by paying

Question 12:- Jaspal Singh repays his total loan Rs 1,18,000 by paying every month starting with the Ist instalment of Rs 1000, If he increases the instalment by Rs 100 every month, what amount will be paid by him in the 30th instalment ? What amount of loan will he still have to pay after … Read more

## A thief runs with a uniform speed of 100 m/minute.

Question 11:- A thief runs with a uniform speed of 100 m/minute. After one minute, a policeman ran after to catch him. He goes with a speed of 100 m/minute in the first minute and increase his speed by 10 m/minute every succeeding minute. After how many minute the policeman will catch the thief ?  … Read more

## Evaluate int 0 to pi x cos x upon 1 plus cos square x

Question 2: Evaluate: Solution:  Let ………….(i) Using property ……….(ii) Put New limits, when x = 0, t ⇒ 1 and x = π ⇒ t = -1 Putting in eq (ii)   See the last year paper class 12 Mathematics cbse class 12 math paper 2024 set 2 series qss4r-4

## cbse class 12 math paper 2024 set 2 series qss4r-4

Mathematics(2023-2024) Series: QSS4R/4(Q.P. Code 65/4/2) Dowload pdf :- cbse class 12 math paper 2024 set 2 series qss4r-4 Time allowed: 3 hours             Maximum Marks: 80 General Instructions: Read the following instructions very carefully and strictly follow them : (i) This Question Paper contains 38 questions. All … Read more

## X Y and Z can complete a piece of work individually in 6 hours 8 hours and 8 hours

Question:- X Y and Z can complete a piece of work individually in 6 hours 8 hours and 8 hours respectively. However, only one person at a time can work in each hour and nobody can work for two consecutive hours. All are engaged to finish the work. What is the minimum amount of time … Read more

## A certain number of men can complete a piece of work in 6k days

Question 1: –  A certain number of men can complete a piece of work in 6k days, where k is natural number. By what percent should the number of men be increased so that the work can be completed in 5k days ?             [UPSC CSAT 2024] A). 10%      … Read more

## The present age of a father is three years more than

The present age of a father is three years more than three times the age of his son. Three years hence, the father,s age will be 10 years more than twice the age of the son. Determine their present ages.            [CBSE  2020] Answer:-  Let ‘x’ (in years) be the present … Read more

## Find the nth differential coefficient of x^3 cos x

Find the nth differential coefficient of  x^3 cos x . This solution employs Leibnitz’s theorem, addressing the application and simplification of the nth derivative. For x^3 cos x , higher-order derivatives of x^3  beyond the fourth will become zero, simplifying the calculations. The detailed solution explores the use of trigonometric identities and combinations to derive … Read more

## Find the value of nth derivative of y=cos x cos 2x cos 3x

Learn how to Find the value of nth derivative of y=cos x cos 2x cos 3x using partial fractions and differentiation techniques. Follow our detailed step-by-step solution to master this calculus problem Q 10:- Find the value of nth derivative of . Solution:- Let ⇒ ⇒ ⇒ ⇒ ⇒ ⇒ Differentiate with respect to x ⇒ … Read more