Question

||a+9|-a| при a=4 помогите!!!help!!!!​

Answer 1

Так ответ

4+9=13-4=9

Легко и просто ◕‿◕

Answer 2

Sure, I'd be happy to help you evaluate the expression ||a+9|-a| when a = 4.

Step 1: Replace "a" with the value 4 in the expression: ||4 + 9| - 4|

Step 2: Perform the operations inside the innermost absolute value: |13 - 4|

Step 3: Evaluate the absolute value: |9|

Step 4: The absolute value of 9 is 9, so the final result is: 9

Therefore, when a = 4, the value of the expression ||a+9|-a| is 9.