The value of(2°C, -1°C,) +(°C, -10C2)+($C, -10 C3 ) +(°C, -” C.)+ +(“C10 -10Cre)is :220 – 22O220 -2100 221 – 211O 221 – 20 About the author Piper
– 5 2
5. By taking x = , y =
and z=
3
7
verify that-
4′