- Prove cot x sin 2x = 1 + cos 2x?

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How many moles of N2 gas would be formed if 1.73 g sulfamic acid was reduced with 1.40 g sodium nitrite? Nearest hole number 32.49 times 4.26? Can someone help me with this question?i am not sure how to solve. Find the volume of the parallelepiped determined by j + k, i + j + k? Whatssup? THIS ONE. Solve it chemistry experts? Why does nasa hate Jews?