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dear Nishanth Singh, can u explain me why the sum of the distance from the focii to the point on ellipse is constant = length of major axis
and dear Lokesh, can u tell me how you got it

(1-i)⁶+ (1-i)³

1)1 + i²+ i⁴+ ...................................... i2n is

2)

^#_{n=0 ^(2i/3)}ⁿ=

here # is used instead of infinity

1) find the locus of I z+4i I + I z - 4i I = 10

2) I 1-i i I =x + iy then x= ??

I 1+2i -i I

can u tell me in more detail how to balance chemical reaction based on half oxidaton and half reduction processes(Jettle Lamer's)

i am not undertanding how to make proper utilisation of the time. it seems to me that by the time i open and close my eyes, a day is passing. i am unable to cope up with my syllabus. i am utterly depressed as my parents r expecting lots from me but they failed to realise that i am not upto the standard. my performance in the tests is also degrading day by day as the syllabus is increasing. can u please suggest me how i can catch up with my syllabus by making best utilisation of the time and also the duties to do while studying.

thanking u

shreya,

junior inter

direction of null vector cannot be determined

how can we surely say that the pressure is constant

suppose there r two rough inclined planes(with diff roughness) with same angle of inclination, then will the limiting friction cofficient be same in both the cases??( because limiting f cofficient is given by tan

)

suppose we r drawing a free body diagram of a body, then we consider all the forces acting on the body but we dont consider the force whichthe body is exerting, y?//

y does a body experince pseudoforce

and y is pseudoorce not included in neutons laws???

suppose we just simplyappy a force and leave it(we dont apply continuously) on arough inclined plane, then the retardation of the body is given by

mg

will u plz tell me detailedly y it is taken like that

suppose a cylinder is covered by a piston, then inorder to keep the gas in the cylinder at a constant pressure, why should we allow it to expand freely?/

may i hav detailed explanation please

a block is placed at a distance of 2m from the rear on the floor of the truck(g=10m/s). when the truck moves with an acceleration of 8m/s², the block takes 2 sec to fall off from the rear of the truck. The cofficient of sliding friction between the truck and the block is

0.5

0.1

0.8

0.7

are the normal reaction and tention self adjusting like the frictional force upto a limit or do they keep on adjusting for any weight of the body