f 3 94 = (i + 2j 2k) b 95 = i j 2i + 4j 96 a b 2i + 4j + 2k c 2i + 2k d 4j + 2k e 4j 2i 4j f g 4j + 2k h 4j + 2k Analysis: 18 a b a = + 2a b i b ii = + a b c, d 19 a + p r b 2p + 2r + 2x c + + p r x d + p r e Parallelogram; = 20 a i = 15 p ii = + i j b i = + = + p q p q ii = + = p q = 2j 21 a i –i – ii = iii 207 b i 14i j ii (2 + 4t)i j km c
f 3 94 b = (i + 2j 2k) 95 = i j 96 a 2i + 4j b 2i + 4j + 2k c 2i + 2k d 4j + 2k e 4j f 2i 4j g 4j + 2k h 4j + 2k Analysis: 18 a b a b i = b + 2a ii = a + b c, d 19 a p + r b 2p + 2r + 2x c p + r + x d p + r e Parallelogram; = 20 a i p = 15 ii = i + j b i = p + q = p + q ii = p + q = 21 a i = –i – 2j ii = iii 207 b i 14i j ii (2 + 4t)i j c km
VECTORS-REVISION.docx