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Prove: (3−4sin2𝑥)(sec2𝑥−4tan2𝑥)=(3−1tan2𝑥)(1−4sin2𝑥)
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50.0 mL of a 0.00200 M Cd^2+ solution is titrated with 0.00400 M EDTA in thepresence of 0.0750 M NH3 buffered at pH = 9.00.
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