Please help me out with this question TrueFalse Determine wh

Please help me out with this question

True/False. Determine whether the following statement is true or false. Explain your reasoning (4) For any point (x-y) on the unit circle, is a unit vector. (A) True (B) False (C) not enough information (D) none of the above

Solution

Yes, It is True because magnitude of <x,y> will always remain same as the equation of unit circle is x^2+y^2 = 1

So, any vector on the circle has the magnitude of 1