Вычислить 1) √ (√7-2√10+√2) * √5 2) √ (√16-6√7+√7) * 3 3) √ (√8+2√15-√8-2√15) * 2+7

1). √ (√7 - 2√10 + √2) * √5 = 2,46.

√7 = 2,64;

2√10 = 2 * 3,16 = 6,32;

√2 = 1,41;

√5 = 2,23;

2,64 - 6,32 = - 3,68;

- 3,68 + 1,41 = - 2,27;

- 2,27 * 2,23 = - 6,06;

√ - 6,06 = 2,46.

2). √ (√16 - 6√7 + √7) * 3 = 5,26.

√16 = 4;

6√7 = 6 * 2,64 = 15,87;

√7 = 2,64;

4 - 15,87 = - 11,87;

- 11,87 + 2,64 = - 9,23;

- 9,23 * 3 = - 27,69;

√ - 27,69 = 5,26.

3). √ (√8 + 2√15 - √8 - 2√15) * 2 + 7 = 2,64.

√8 = 2,82;

2 √15 = 2 * 3,87 = 7,74;

2,82 + 7,74 = 10,56;

10,56 - 2,82 = 7,74;

7,74 - 7,74 = 0;

0 * 2 = 0;

0 + 7 = 7;

√7 = 2,64.