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6-(-8) = ?...

`6-(-8) = ?`

A

`-2`

B

`2`

C

`14`

D

none of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the expression \( 6 - (-8) \), we will follow these steps: ### Step 1: Understand the expression The expression we have is \( 6 - (-8) \). Here, we need to subtract a negative number. **Hint:** Remember that subtracting a negative number is the same as adding its positive counterpart. ### Step 2: Change the subtraction of a negative number to addition When we subtract a negative number, we can change the operation to addition. Therefore, we can rewrite the expression as: \[ 6 - (-8) = 6 + 8 \] **Hint:** Think of the rule: \( -(-x) = +x \). ### Step 3: Perform the addition Now, we will add the two numbers: \[ 6 + 8 = 14 \] **Hint:** When adding, you can count up from 6 by 8, or simply combine the two numbers directly. ### Final Answer Thus, the value of \( 6 - (-8) \) is: \[ \boxed{14} \] ---
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Knowledge Check

  • The inverse of the matrix A[(1,1,1),(6,7,8),(6,7,-8)] using adjoint method is

    A
    `-(1)/(16)[(-112,1,15),(96,-14,-2),(0,-1,1)]`
    B
    `-(1)/(16)[(-112,15,1),(96,-2,-14),(0,-1,1)]`
    C
    `-(1)/(16)[(-112,15,1),(96,-14,-2),(0,-1,1)]`
    D
    `-(1)/(16)[(112,15,1),(96,-14,-2),(-1,0,1)]`
  • Inverse of the matrix {:[(0.8,0.6),(0.6,0.8)]:} is

    A
    `{:[(0.8,-0.6),(0.6,0.8)]:}`
    B
    `{:[(-0.8,0.6),(-0.6,0.8)]:}`
    C
    `{:[(-0.8,-0.6),(0.6,0.8)]:}`
    D
    `{:[(8,-6),(6,8)]:}`
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