p=-2 q=-1 r =3 so p square +q square+r square
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p2 + q2+r2
=(-2)2+(-1)2+(3)2
=4+1+9
=14
=(-2)2+(-1)2+(3)2
=4+1+9
=14
Psbakshi1967:
(-2)2 will be -4 na?
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