A, b, c are non-coplanar vectors. Prove that the following four points are coplanar. (i)-a + 4b - 3, 3a + 2b - 5c. - 3a + 8b - 5c, -3a + 2b + c
(ii) 6a + 2b - c, 2a - b + 3c, - a + 2b - 4c, -12a - b - 3c​

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Ok, before buying a burger. think of you diet and calories. how many calories are you suppose to eat a day. and look at how much fat, calories, salt is in it. if it is ok to you, then buy it. but if you think that it's to much fat and salt for you. don't buy !

Air goes past the epiglottis and into the trachea when you breathe in. from there, it goes to your vocal cords in the larynx until it reaches the bronchi. from the bronchi, air passes into each lung.