I don't understand how to work through this problem. Thank you!

1. Given P2 is equipped with standard inner product where, = dobo + a1b1 + a2b2. Ifp(x) = 1 - 2x - x2 & q(x) = x- x2 find a ) b) llpll c) d(p, q) 2. Let M2,2 be equipped with inner product, where = @11b11 + 4012b12 + 4021b21 + @22b22 If A = [2 1 &. B = [2 2]. find a) A vector of magnitude 7 opposite direction of vector A b) The angle between vectors A&B