if p=12i-4j and q=-7i+8j calculate the value of each expression below without a calculator. Estimate any irrational answers to one decimal place.

1.) p-2q 2.)||p+q||

Question

if p=12i-4j and q=-7i+8j calculate the value of each expression below without a calculator. Estimate any irrational answers to one decimal place.

1.) p-2q                              2.)||p+q||

anonymous · Answer

is the 2nd question supposed to be an absolute value, or greatest integer function?

anonymous · Answer

absolute value. And for the first one you just combine like terms then set it all to equal p-2q right?

anonymous · Answer

so the answer for the first one would be 26i-20j right?