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Q: How do you prove one - tan square x divided by one plus tan square xequal to cos two x?

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2 times the Square root of 3 + 4

44 divided by (the square root of 4 plus the square root of 4) or 4 divided by point 4 plus 4/4

Because there is no way to define the divisors, the equations cannot be evaluated.

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29.5

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