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A.Avinash_Goutham Group TitleBest ResponseYou've already chosen the best response.1
u kno tan2x = 2tanx/1tan^2x nd cotx = 1/tanx
 2 years ago

A.Avinash_Goutham Group TitleBest ResponseYou've already chosen the best response.1
form a quadratic nd solve........ for tanx........ then u l get the g.s
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
\[\tan(2x) = \cot(90 + x 30) \implies (\tan(x30)) = \tan(x  \frac{\pi}{6})\] \[\implies \tan(2x) = \tan(x  \frac{\pi}{3})\]
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
General solution is given by: \[\tan ( \theta) = \tan(x)\] then: \[\theta = n \pi + x\]
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
so: \[2x = n \pi + ( x  \frac{\pi}{3} ) \implies x = n \pi + \frac{\pi}{3}\]
 2 years ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
hey @waterineyes but my books says it as x = n pie + 5pie/6
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
So put n = 0 1 2 3 4 etc etc and find the corresponding value of x..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
you can subtract it from \(2 \pi\)..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Wait something got wrong.. Let me check..
 2 years ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
@w\ r uthere
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Wait I am checking it..
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
I got it..
 2 years ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.0
dw:1343210793286:dw
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
\[\tan(2x) = \cot(x60) \implies \cot(90  (x + 150)) \implies \tan(x + 150)\] \[\tan(2x) = \tan(x + 150)\]
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
150 is in degrees: \[150^{\circ} = \frac{5 \pi}{6}\]
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
So: \[2x = n \pi + x + \frac{5 \pi}{6}\]
 2 years ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
wat the wrong in 1 st method!!
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
and subtract x from both sides: \[x = n \pi + \frac{5 \pi}{6}\]
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
My mistake in reading i read as : x  pie/3
 2 years ago

waterineyes Group TitleBest ResponseYou've already chosen the best response.1
Welcome dear..
 2 years ago
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