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Tn = ar^n-1

where Tn is the n'th term of an Geometric Progression

a = 1st term

r = common ratio

Tn = a + (n - 1)d

where Tn is the n'th term of an Arithmethic Progression

a = 1st term

d = common difference

for the inorganic portion i would refer the ncert text book because it provides a suitable reason for each statement especially for the inorganic lessons...HC Verma is also a very good book..

in case there is an even no. coming then u'll hav 2 check each elements electronic conf. to find the unpaired e-

thats damn simple...

add all the atomic nos of all the elements present...

if there is an odd no coming then surely that comp. has an unpaired e-

try HC VErma part II(green book) it has special relativity

hey..sometimes itz not possible to balance some redox eq. by oxidation no. method! try the ion e- method..it can never fail!

and till which rank can u chose the branch u want?

i wanted 2 know till what rank can u get in any of the IITs?

it can be either rt. angled or acute angled..but if it passes thru the centre..then it automatically bcomes a rt. angled triangle

but your qs. cannot explain thE CASE:

5 x 0 = 0

can anybody send me the formulae related to chords bcoz i'm kinda confused with it!

is it "x + a"?