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electric field in assymetric caity is (kq)/(R2+r2+Rr)
if r is radius of cavity
nd R is radius of sphere
electric field is 0 for symmetric cavity
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and gauss is valid for large surfaces
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Sum infinite terms of the series cot-1{12 + (3/4)} +cot-1{22 + (3/4)}+cot-1{32 + (3/4)}+............................................
is
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yes sand storm
but how come
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plz solve
LET a,b,c be positive real numbers and
 =tan-1{[(a+b+c)a/bc]1/2}+tan-1{[(a+b+c)b/ca]1/2}+tan-1{[(a+b+c)c/ba]1/2}
THEN tan is equal to
????????????????????????????????
i know u can do it
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thaks 2 u all.but can u tell me wich topics r important nd how 2 strong ur concepts nd 2 strong ur questions doing capabilities.please???
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hey its already a year over&i think vry less time left for me to study for iit & boards too .although i had joined coaching but i dont know how can i have cinfidence in myself.i get vry upset wen i see students solving d questions wich i cant&at dat i think i dont hav d capability of clearing jee.
also pls tell me something about time management
pls reply soon
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