JEE Advance - Mathematics (1987 - No. 2)
Let $$b = 4\widehat i + 3\widehat j$$ and $$\overrightarrow c $$ be two vectors perpendicular to each other in the $$xy$$-plane. All vectors in the same plane having projecttions $$1$$ and $$2$$ along $$\overrightarrow b $$ and $$\overrightarrow c, $$ respectively, are given by ...........
$$\widehat i - 2\widehat j$$
$$2\widehat i - \widehat j$$
$$2\widehat i + \widehat j$$
$$-2\widehat i - \widehat j$$
$$-2\widehat i + \widehat j$$