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OpenStudy (anonymous):
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||
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OpenStudy (anonymous):
is the 2nd question supposed to be an absolute value, or greatest integer function?
OpenStudy (anonymous):
absolute value. And for the first one you just combine like terms then set it all to equal p-2q right?
OpenStudy (anonymous):
so the answer for the first one would be 26i-20j right?
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