Page 162 - Fixtures

@ @QTW@ @æa@paˆ@pþàbÉà@ @

.2x 2 − 1 21 ()
x

.Tk +1 = C (21,k)(2x 2)21−k  −1 k
x

k =8

.T9 = C (21, 8)(2x 2 )13  −1 8 = 213C(21, 8)x 26 × x −8 = 213C (21, 8)x18
x

.2x 2 − 1 12 x 12 ()
x

.Tk +1 = C (12, k )(2x 2 )12−k  −1 k = (−1)kC (12,k) × 212−k x 24−3k
x

x12 , .k = 4 . 24 − 3k = 12

.T5 = C(12, 4)× 28 = 126720

.  x + 2 15 ()
x2

.Tk +1 = C (15, k )x 15−k  2 k = C (15,k) × 2k x15−3k
x2