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

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If V1 is 30km per hour and v2 is 50 in the opposite way is V=V2-V1, that is 20 ? Draw a diagram ,showing the interconnection and influence among the different identities of ir? I have to make chloroform, however how am I meant to know the amount of H/CL I need? More H changes it to chloromethane.? How time not be 3072 MB? What type of molecules have polar bonds arranged asymmetrically?