black body is sumthing vich can absorb all da radiations falling on its surface n emitt them 100%

so a black board surface is wen painted black n radiations r made to fall on it it can act as a perfect black body

  whereas in a black hole

 u can imagine it as a black box or a dark room having 1 cavity frm where radiations r allowed to fall so its ...... as a result it will absorb 98 % of da total rad falling on it & emitt only 2% of da radiations hence it cant b better dan black board surface...........

 

i hope m correct n my analogy works............

i think i ve da best ans for ur ques

 

its a shortcut

        0 to pie / 2 ki limits hai so dis shortcut is applicable on sin (ki power n) x as well as for cos ( ki power n) x

 

       sin ^ 8 x =  ( 7 . 5 . 3 .1 /  8 . 6 . 4 . 2 . )*  pie / 2 since da power is even ie. 8 so v'll multiply by pie / 2

 

& iff power of sin x is odd  then we ll not multiply by pie/ 2

 

its a short cut applicable only if limits r b/w 0 to pie / 2

its done like dis ... jus have a luk

 

 

yaar i knw all dis stuff dat inverse is da reflection abt line y = x  bt & point of intersection of f(x) & f inverse x will lie on dis line only

 

bt tell me hw to proceed ... if ne 1 knws to do it by graph then plz do it n tell me da complete soln.

ne 1 plz replyyyyyyy

its urgent