- If 2cosx=z1+1/z1 2cosy=z2+1/z2 2cosz=z3+1/z3 prove z1z2z3=1/z1.1/z2.1/z3?

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The main function of the nervous tissue is to:? Someone slows from a velocity of 150 m/s to rest with an acceleration of -20.0 m/s2. How far did he travel during this time? Provide 2 examples of physical geography having a major influence on population patterns? Taxi passed the distance from A to B and back for 13 1/2 hours. From A to B ran at 65 km / h and back - at 70 km / h. How long is AB? The sum of a number and 20 divided by 8?