If tan `x=(3)/(4) " and  " pi lt x  lt .(3pi)/(2)` find the  value  of   `(i)  sin.(x)/(2)  , (ii

If tan `x=(3)/(4) " and " pi lt x lt .(3pi)/(2)` find the value of `(i) sin.(x)/(2) , (ii

If tan `x=(3)/(4) " and " pi lt x lt .(3pi)/(2)` find the value of `(i) sin.(x)/(2) , (ii) cos .(x)/(2) , (iii) tan .(x)/(2)`