Question

ii) Verify that x + y + z - 3xyz = 12 (x + y +z)[(x - y) + (y - z)2 + (z - x)?]​

Answer 1

Answer:

Soda acid type extinguisher acts by cutting off supply of air. It acts on all types of fire except due to electrical and inflammable liquids. The carbon dioxide is liberated by the action of acid on banking soda, it increase the percentage of carbon dioxide in air

Answer 2

Answer:

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