Question

Решите (-7)^2*(-7^-3)^5/7^-2=

Answer 1

Думаю все понятно)))))

Answer 2

To simplify the expression, follow the order of operations (PEMDAS/BODMAS):

1. Start with exponents: (-7)^2 = 49 and (-7)^(-3) = -1/343.
2. Then perform the multiplication: (-7)^2 * (-7)^(-3) = 49 * (-1/343).
3. Next, combine the powers: (-1/343)^5 = -1/7,821,501,439.
4. Finally, divide by 7^(-2) = 7^2 = 49.

Putting it all together:

(-7)^2 * (-7^(-3))^5 / 7^(-2) = 49 * (-1/7,821,501,439) / 49

Now, since 49 is in the numerator and the denominator, they cancel out:

= -1/7,821,501,439

So the simplified value of the expression is approximately -0.000000000128.