Question

20%5C%3A%20a%20%2B%20b%20%3D%202" id="TexFormula1" title="if \: \frac{ \sqrt{2} }{2} a + b = 0 \: and \: a + b = 2" alt="if \: \frac{ \sqrt{2} }{2} a + b = 0 \: and \: a + b = 2" align="absmiddle" class="latex-formula">
then a×b=?

Answer 1

2 x 1=2 or you can have 1+1=2