Question: I need help with #18 and #20 please . Question 18 Find the vector from P to Q: P = ( - 4, 4) and

I need help with #18 and #20 please

I need help with #18 and #20 please . Question 18 Find

. Question 18 Find the vector from P to Q: P = ( - 4, 4) and Q = ( - 3, 4). Question Help: Message instructor Question 19 Let a = and b = . Find a . b. 19 Question Help: Message instructor Question 20 sec(t) - cos(t) Simplify sin (t) to a single trig function with no fractions. Question Help: Message instructor Question 21

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