- Prove that {e1, e2,..., en} is a basis of R^n?

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Total surface of human body 1.2m^2
face temp. 30degree
surrounding 20degree
what is the heat loss from body by radiation? ? I need news on the tremors/aftershocks/earthquake I am feeling in Maricopa county Arizona.? If you started with 3.60g of Copper and reacted it with an excess of nitric acid what mass of copper hydroxide would you expect to recover? If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? ~ x + y + z = 3, x² + y² + z² = 5, x³ + y³ + z³ = 7 ➪ x⁴ + y⁴ + z⁴ = ?