MATH SITE
Monday, May 28, 2018
Contents
Arithmetic
Set a)
Introduction to set
b)
Set operation and venn diagram
Profit and loss
Commission and Taxation
Home arthimetic
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hard problem 27(Find the required angle)
Relation between Cartesian (or rectangular) components of stress
Consider the motion of a small rectangular parallelepiped in viscous fluid with centre at P(x,y,z) and it’s edges of length d x, d y, ...
A uniform solid cylinder is placed with its axis horizontal on a plane, whose inclination to the horizon is α. Show that the least coefficient of the friction between it and the plane, so that it may roll and not slide, is 1/3 tanα. If the cylinder be hollow and of small thickness, the least value is 1/2 tanα.
Solution: In this figure 1 , a uniform solid cylinder is placed horizontally on the plane BOCD Which makes an angle α with the hor...
A shopkeeper purchased an electric fan for Rs. 1560 and sold it at 5% profit. Find his actual profit and selling price of the fan.
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