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3.4. Z =* ,/зб-х2-у2, * = J(x 2* y 2)/63 .<br />

3.5. x2 + y2 = 5/, x2 + y2 - 8y, z - Jx2+y2 ,z - 0.<br />

3.6. JT+y = 2, у = Jx , z m 12у , z “ 0.<br />

3:7. x2 +y2 - 2 , x “ Jy ,z = 30 у , j c = 0 , i = 0.<br />

3.8. x+y - 2 , x = Vy, z = 1 2 i/ 5 ,f« 0 .<br />

3.9. X2 + y2 - 4x, i - 10-у2, г ” 0 .<br />

3.10. г - 8(x2+y2) + 3 , г = 16x+ 3.<br />

3.11. z = 12-x2-y2, x2+y2 = 9 , z = 0.<br />

3.12. г = 1-x , у = 3-х, x = 0, у = 0, z = О.<br />

3.13. г - х + 3у2, х+у - 2, х - 0, у - о , г “ 0.<br />

3.14. z = 9 -у2 , г = 0, х2 +у2 = 9.<br />

3.15. г = х + у2 , у - х, у - 2х, х - 2 , г - 0.<br />

3.16. х+у+г х2+у2 = 1.<br />

3.17. г “ 10-х + 2у, I - 0 , х2+у2 = 4.<br />

3.18. г “ х2 + у2 , у = х2 , у = 1, z = 0 .<br />

3.19. z = 4-х , 2х + у - 4, х - 0, у - 0, г - 0.<br />

3.20. х - 2у2, угО , z “ 0, х+2у+г = 4 .<br />

3.21. х - 19 Л у , х - 4 J2y, Z+y т 2 , z “ 0.<br />

3.22. х + у - 6, у - JTx, z “ 4 у, г “ 0.<br />

3.23. х2 + у2 = 4х, г = 0, г - 12 - у2 .<br />

2 2 2 2 I з 5<br />

3.24. х + у - 4у, х + у “ 7у, г “ Vx +у , z " 0.<br />

3.25. х2 + у2 = 8./2х, х2+у2-64 .<br />

3.26. z - 2 - 12(х2 + у2) , г - 24х+2.<br />

3.27. 4 Sx2 + у2 + z2S 64 , zS а/(? + у2)/3 , -x/JbSyiO.<br />

3.28. z - 10(х2 + у2) + I , г “ I - 20у.<br />

3.29. у ” 6jTx, у ” JTx , х +1 ■* 3 , г =* 0.<br />

362

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