ShoutBox (Part 1)

Jobs & Careers
26626
@nits2811 said:
acha agar aisa hoo ki A,B,C are in AP toh log A, log B, log C are in???
Agar condition nikaalni hi hai to ye lo

A, B, C are in AP=> 2B = A+C

logA = x, logB = y, logC = z

2*10^y = 10^x + 10^z => (10^y - 10^x) / (10^z - 10^y) = 1 :mg:
26627
@economst said:
Page not found. :mg:
26628
@Estallar12 like kar rahe ho... help!!!
26629
@YouMadFellow said:
Agar condition nikaalni hi hai to ye loA, B, C are in AP=> 2B = A+ClogA = x, logB = y, logC = z2*10^y = 10^x + 10^z => (10^y - 10^z) / (10^z - 10^y) = 1
kuch bhi kardia tune...x ko kahan bhaaga dia...
26630
@YouMadFellow said:
Agar condition nikaalni hi hai to ye loA, B, C are in AP=> 2B = A+ClogA = x, logB = y, logC = z2*10^y = 10^x + 10^z => (10^y - 10^z) / (10^z - 10^y) = 1

isiliye bolta hun aap fodu ho :clap:
26631
@YouMadFellow said:
options diya karo.. chai pike aaya .. filhaal to cosine rule dikh raha hai.. but 3A damn.. !
ye le yar options le :
240,120,180

26632
@mahalgoldn said:
@Estallar12 like kar rahe ho... help!!!
Clicked on "Unlike" :splat::splat:
26633
@Brooklyn said:
bina options ke kar!! itna bhi tough nhi hona chahiye bina options ki hai ???
Ok !

a:b:c = 4:5:6

cosA = (25+36-16) /2.5.6 = 45/2.5.6 = 3/4
cosC = (16+25 - 36)/2.4.5 = 1/8

sin2A = 2*3/4*root(7)/4 = 3root(7)/8
cos2A = 1/8

-> 2A = C !

3A + B = 180-C + 2A => 180 !
26634
@Estallar12 said:
Clicked on "Unlike"
26635
@nits2811 Arey wo typo ho gaya .. sorry 😛 ..EDITED
26636
@nits2811 said:
kuch bhi kardia tune...x ko kahan bhaaga dia...
Arrey woh Denom main 10^x - 10^y hai.
26637
@Brooklyn said:
ye le yar options le :240,120,180
Mai bas itna Bol sakti hu 240 se kam hai :mg: probably 180 hai :mg:
26638
@ankita14 said:
Mai bas itna Bol sakti hu 240 se kam hai probably 180 hai
aap to topper ho hi
26639

@YouMadFellow

Bhai end me kya kia sar k upar se nikal gya

26640
@YouMadFellow said:
Ok !a:b:c = 4:5:6 cosA = (25+36-16) /2.5.6 = 45/2.5.6 = 3/4 cosC = (16+25 - 36)/2.4.5 = 1/8sin2A = 2*3/4*root(7)/4 = 3root(7)/8cos2A = 1/8-> 2A = C !3A + B = 180-C + 2A => 180 !
Sin2A kyu nikala par :mg:
26641
@YouMadFellow :

yar isnt raito of sides = ratio of angles opp to them ??? :O

26642
@mba4mheart said:
@YouMadFellowBhai end me kya kia sar k upar se nikal gya
Arey 3A + B = 2A + (A+B) = 2A + (180-C) ! .. aur maine dekha ki cos2A = cosC .. ab triangle hai.. to 2A = 2*pi + C to nahi hoga.. matlab 2A = C hoga.. to wo kat gaya .. aur sirf 180 bacha..
26643
@Brooklyn said:
@YouMadFellow : yar isnt raito of sides = ratio of angles opp to them ???
Nai ratio of sides equals ratios of sines of angles opp them.
26644
@ankita14 said:
Sin2A kyu nikala par
I was actually directly using text editor.. jo man me aaya karta gaya .. was willing to calculate all sines .. but then Eureka and cos2A turned out to be cosC :mg:
26645
@Brooklyn said:
@YouMadFellow : yar isnt raito of sides = ratio of angles opp to them ???
:wow: kyu bhai.. ? kounsa rule ? Bas yeh follow hota hai :

Angle A > Angle B => a > b and similar cases..
and sinA/a = sinB/b ..sine rule