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## Homework Statement

required to prove that

∫()[, ] =∫(−) [+, +]

where f is a real valued function integrable over the interval [a, b]

## Homework Equations

∫() [, ]=()−()

## The Attempt at a Solution

∫() [b, a]=()−()

∫(−) [+, +]=(+−)−(+−)=()−()

∴∫()[, ] =∫(−) [+, +]

right i placed the interval in the [] brackets

is this correct?