Question

Let ￫ a and ￫ b be two unit vectors such that ￫ aㆍ￫b 0 . For some x, y ∊ R, let ￫c=x￫a+y￫b+(￫a x ￫b) . If |￫c|= 2 and the vector ￫c is inclined at the same angle ???? to both ￫ a and ￫ b, then the value of 8cos²???? is _____ .

Answer 1

Answer:

8cos² .................

Answer 2

Answer:

hi hello what are you doing the question is unity is to be a story two unit vectors such as the taste b.li.sc that's why is to our letters X2 X2 X2 X2 X2 X2 X2 X2 angle both both as2 bs2 b then value of the it cost to square is question is this