Question

Show that 1/r square + 1/r1 square + 1/r2 square + 1/r3 square = a square + b square +c square / delta square​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Reca 1 (a) excretion (c) digestion 2. (b) respiration (d) transpiration (c) excretion (b) photosynthesis (d) transpiration (b) water and energy (d) water only 1. Select the correct option. A process by which food gets oxidised to release energy is called The green plants make their own food by the process of (a) respiration 3. The end-products of aerobic respiration are (a) carbon dioxide, water and energy (c) sugar and oxygen The gaseous exchange takes place in plants through (a) lenticels and spiracles (c) stomata and lenticels 5. Anaerobic respiration takes place in the (a) absence of oxygen When you respire anareobically, the food is broken down into (c) absence of carbon dioxide (d) presence of carbon dioxide (c) lactic acid and carbon dioxide (d) carbon dioxide 7. An incomplete breakdown of glucose releases 4. (b) lenticels (d) flowers (b) presence of oxygen ooooo 6. (a) fatty acid (b) oxygen (b) less energy (a) more energy (c) no energy (d) very high amount of energy 8. Which gas is used as a raw material for photosynthesis? (b) Oxygen (d) Sulphur dioxide (a) Carbon dioxide (c) Nitrogen wand