Payment

{ "id": "down_F8LCfthx90fMOo", "method": &quo…

4U

पेरी 3 (ए) 60 (सी) 48 (बी) 72 (डी) 36 25. यदि n 0 और 21 के बीच एक पूर्णांक है,…

https://drive.google.com/file/d/16vpjROPhQjOKkloEtYDAUlNJJYlHoK0k/view?usp=driv…

Find the circum-centre and circum-radius of the triangle whose vertices are (-2,3), (2,-1) and (4,0).

Solutions ::--->    Q. .If a,b are the roots of equation a * x ^ 2 + bx + …

Q.. A square plate of edge d and a circular dise of diameter d are placed touching each other at the midpoint of an edge of the plate as shown in figure (9-Q2). Locate the centre of mass of the combination, assuming same mass per unit area for the two plates.

Solution::---- Link;--> A ball is dropped from a height of 5 m onto a sand…

Prove that cot 6 degrees cot 42 degrees cot 66^ cot 78 degrees = 1

Q.Prove that cot 6 degrees cot 42 degrees cot 66^ cot 78 degrees = 1.. Solutio…

7. If aß be the roots of equation x^ 2 -(5-i)x+18+i= Omega, where a > B, then write the value of 3xa+ 4B.

7. If aß be the roots of equation x^ 2 -(5-i)x+18+i= Omega, where a > B, th…

If a, ß are the roots of equation a * x ^ 2 + bx + c = 0 then what are the roots of equation c * x ^ 2 - bx + a = C

Q..If a,b are the roots of equation a * x ^ 2 + bx + c = 0 then what are the r…

Class 11th admission merit list

Click here

An elevator is descending with uniform acceleration. To measure the acceleration, a person in the elevator drops a coin at the moment the elevator starts. The coin is 6 ft above the floor of the elevator at the time it is dropped. The person observes that the coin strikes the floor in 1 second. Calculate from these data the acceleration of the elevator.

Q... An elevator is descending with uniform acceleration. To measure the accele…

A ball is dropped from a height of 5 m onto a sandy floor and penetrates the sand up to 10 cm before coming to rest. Find the retardation of the ball in sand assuming it to be uniform.

Q..A ball is dropped from a height of 5 m onto a sandy floor and penetrates th…

Ali buys a scooter for Rs. 22000. He pays Rs. 4000 cash and agrees to pay the balance in annual instalment of Rs. 1000 plus 10% interest on the unpaid amount. How much the scooter will cost him ?

Q..9. Ali buys a scooter for Rs. 22000. He pays Rs. 4000 cash and agrees to pa…

A farmer buys a used tractor for Rs. 12000. He pays Rs. 6000 cash and agrees to pay the balance in annual instalments of Rs: 500 plus 12% interest on the unpaid amount. How much will the tractor cost him ?

Q.10. A farmer buys a used tractor for Rs. 12000. He pays Rs. 6000 cash and ag…

12 Let S be the sum, P the product and R the sum of reciprocals of n terms of a GP. Prove that P^2*R^n=S^n". [IIT]

Q..Let S be the sum, P the product and R the sum of reciprocals of n terms of a…

11. Show that the ratio of the sum of first terms of a GP to the sum of next 1 n terms is 1/r^n ,,where is the common ratio of GP

Q. Show that the ratio of the sum of first terms of a GP to the sum of next n t…