If x2=25 and y4=81, then which of the following CANNOT be the value of x+y?
Even roots of numbers can either be positive or negative. Thus, x = +/- 5 and y = +/- 3. The possible values from x + y can therefore be: (-5) + (-3) = -8 (-5) + 3 = -2 5 + (-3) = 2 5 + 3 = 8
Even roots of numbers can either be positive or negative. Thus, x = +/- 5 and y = +/- 3. The possible values from x + y can therefore be:
(-5) + (-3) = -8
(-5) + 3 = -2
5 + (-3) = 2
5 + 3 = 8
86 MCQ for effective preparation of the test of Arithmetic of Arithmetic section.
Read the MCQ statement: If x2=25 and y4=81, then which of the following CANNOT be the value of x+y?, keenly and apply the method you have learn through the video lessons for Arithmetic to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 73-1451.