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Recent questions tagged cl1753
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Prove that $\tan^{-1}{\frac{1}{4}}+\tan^{-1}{\frac{2}{9}}=\sin^{-1}{\frac{1}{\sqrt 5}}$
cl1753
cbse
class12
ch2
q16
p36
exemplar
medium
sec-b
math
asked
Jul 9, 2014
by
balaji.thirumalai
1
answer
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