Question

1)1/7✓196-3/4✓144. 2)(✓7)^-✓1,21

Answer 1

Ответ:

не уверена что правильно 2 варианта решения второго варианта

Answer 2

Let's solve the two mathematical expressions:

1. 1/7 * √196 - 3/4 * √144

First, calculate the square roots:

• √196 = 14
• √144 = 12

Now, plug these values into the expression:

1/7 * 14 - 3/4 * 12

Now, perform the multiplications and subtractions:

2 - 9 = -7

So, the result of the first expression is -7.

2. (√7)^-√1.21

First, calculate the square root of 1.21:

√1.21 = 1.1

Now, take the square root of 7:

√7 ≈ 2.646

Next, calculate (√7)^-1.1:

1 / (√7)^1.1 ≈ 1 / 2.646^1.1 ≈ 0.439

So, the result of the second expression is approximately 0.439.