If ∣∣∣2−3|x|1+|x|∣∣∣=1, then x=
If 3tan−112+√3−tan−11x=tan−113, then x=
If tan2450−cos2300=xsin450cos450,thenx=?
If the lines x−12=y+13=z−14 and x−31=y−k2=z1 intersect, then the value of k is -