Question

v) if Z= 2- under root3 i find value Z.Z​

Answer 1

Z=2-√3

:•Z.Z=(2-√3)(2-√3)

or

(2-√3)²

(a-b)²=a²+b²-2ab

2²+{√3}²-2*2*√3

4+3-(4√3)

7-(4√3)

:•Answer:7-(4√3)