Question

plz someone help me to do this no.​

Answer 1

Answer:

the answer of this problem is -2

Answer 2

Step-by-step explanation:

X+Y–Z=5

(X+Y–Z)^2=25

X^2+Y^2+Z^2+2(XY–YZ–ZX)=25

29+2(XY–YZ–ZX)=25

SO,

XY–YZ–ZX=–2

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