9/3/17

Hello everybody!

I really need your help! I will have an exam soon, so I ask you for help with solving these problems.
Links to the problems: https://yadi.sk/i/gpy7z3lp3LwteWhttps://yadi.sk/i/...

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Image icon Question55.35 KB
Image icon 2017-08-13_17-07-52.png41.74 KB