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Chirag Saini 6 years, 7 months ago
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Posted by Yash Goswami????? 6 years, 7 months ago
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Gaurav Seth 6 years, 7 months ago
n(A U B) = n(A U C) …….1
n(A ∩ B) = n(A ∩ C)………2
Expanding equation 1
n(A) + n(B) — n( A ∩ B) = n(A) + n(C) — n(A∩C)…3
Substituting 2 in equation 3
n(A) + n(B) — n(A∩B) = n(A) + n(C) — n(A∩ B)
Therefore n(B) = n(C)
Posted by Yash Goswami????? 6 years, 7 months ago
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Yash Goswami????? 6 years, 7 months ago
Posted by Black Pink 6 years, 7 months ago
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Yogita Ingle 6 years, 7 months ago
The volume of air remaining in the lungs after a normal expiration is known as functional residual capacity (FRC). It includes expiratory reserve volume (ERV) and residual volume (RV). ERV is the maximum volume of air that can be exhaled after a normal expiration. It is about 1000 mL to 1500 mL. RV is the volume of air remaining in the lungs after maximum expiration. It is about 1100 mL to 1500 mL.
∴FRC = ERV + RV
≅ 1500 + 1500
≅ 3000 mL
Functional residual capacity of the human lungs is about 2500 – 3000 mL.
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Chirag Saini 6 years, 7 months ago
1Thank You