plzz anyone explain me what is sigma....fi....xi.....and other things ...plzzzz
ALTAF11:
the sign £(sigma) means total of something!!.
total of fixi is denoted as £fixi
is it wrong bro??
no ..uh r ryt
ok☺️☺️
m only giving the meaning of £....which uh didn't tell ...the thing uh had given is ryt ... don't worry :)
okk thanks for advice☺️☺️
:)
Answers
Answered by
47
Hii dear here is your answer.....
◆Fi means frequency of given table and xi means class marks which you can find by using formula upper limit+ lower limit/2
and by multiplying both you will get £fixi
hope it helps you☺️☺️☺️
◆Fi means frequency of given table and xi means class marks which you can find by using formula upper limit+ lower limit/2
and by multiplying both you will get £fixi
hope it helps you☺️☺️☺️
Answered by
6
I am telling you according to principal stresses in strength of Material.
Step-by-step explanation:
According to principal stresses concept, the sigma fi (б) is the normal stress in one direction perpendicular to the surface area of the free body in diagram.
And same, sigma y (б) is also the normal stress in compression or in tension and is perpendicular to the surface area and to the sigma fi.
There is also Tao which is shear stress (τ) is used to show the direction of shear stress in free body diagram. It is at some plane and is inclined to the body.
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