Question: Use the given substitutions to show that the given equations are valid. In each, 0 < < /2. If x = 4sec, show that

Use the given substitutions to show that the given equations are valid. In each, 0

If x = 4secθ, show that

x - 16 - 16 = 4 tan0.

x - 16 - 16 = 4 tan0.

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