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प्रश्न
Add the following expressions:
ab + bc + ca and – bc – ca – ab
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उत्तर
We have, ab + bc + ca + (– bc – ca – ab)
= ab + bc + ca – bc – ca – ab
On combining the like terms
= ab – ab + bc – bc + ca – ca
= 0 + 0 + 0
= 0
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