(i) `sin2x=(1)/(2)` (ii) `cos3x=(1)/(sqrt(2))` (iii) `"tan"(2x)/(3)=sqrt(3)`
(i) `sin2x=(1)/(2)`
(ii) `cos3x=(1)/(sqrt(2))`
(iii) `"tan"(2x)/(3)=sqrt(3)`
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Correct Answer - (i) `x=(npi)/(2)+(-1)^(n)*(pi)/(12), n in I`
(ii) `x=((2npi)/(3)+-(pi)/(12)), n inI`
(iii) `x=(3n+1)(pi)/(2),n in I`
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