Question

2+ log2 0,5=(как решить помогите пожалуйста)

Answer 1

Ответ: приложено

Объяснение:

Answer 2

To solve the expression 2 + log2(0.5), you can follow these steps:

Step 1: Evaluate log2(0.5) The expression log2(0.5) represents the logarithm base 2 of 0.5. Logarithm is the inverse operation of exponentiation. In this case, we are looking for the exponent to which we must raise 2 to get 0.5.

log2(0.5) = x means 2^x = 0.5

Since 0.5 is the same as 1/2, we can rewrite the equation as:

2^x = 1/2

Step 2: Find the value of x To find the value of x, we need to express both sides of the equation with the same base. Since 2 is the base of the logarithm, we can rewrite 1/2 as 2^(-1):

2^x = 2^(-1)

For both sides to be equal, the exponents must be equal:

x = -1

Step 3: Substitute x back into the original expression Now that we have found the value of x, we can substitute it back into the original expression:

2 + log2(0.5) = 2 + (-1) = 1

Therefore, the value of the expression 2 + log2(0.5) is 1.