Question

7^-3=?Сколько? ???????????

Answer 1

7^(-3)=1/(7^3)=1/343

Answer 2

To calculate 7 raised to the power of -3, we can use the rule that states a negative exponent is the reciprocal of the positive exponent. In other words:

a^(-n) = 1 / (a^n)

So in this case:

7^(-3) = 1 / (7^3)

Now, let's compute 7^3:

7^3 = 7 * 7 * 7 = 343

Now, divide 1 by 343 to find the value of 7^(-3):

7^(-3) = 1 / 343 ≈ 0.00291545

So, 7 raised to the power of -3 is approximately 0.00291545.