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Recent questions tagged cl1748
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If $2\tan^{-1}(\cos x)=\tan^{-1}(2cosecx)$,then show that $x=\Large {\frac{\pi}{4}}$
cl1748
cbse
class12
ch2
q9
p36
exemplar
medium
sec-b
math
asked
Jun 12, 2014
by
balaji.thirumalai
1
answer
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