`((147xx147+147xx143+143xx143)/(147xx147xx147-143xx143xx143))=?` `1/4` (b) `290` (c) `1/(290)` (d) 4

Which of the product below is equal to 1.47 xx 3.7 ? i) 14.7 xx 3.7 ii) 147 xx 0.37 Iii). 1.47 xx 0.37 iv) 0.147 xx 37 v) 14.7 xx 0.37 vi) 0.0147 xx 370 vii) 1: 47 xx 3.70

Evaluate: ((0. 43) ^(3) + (1. 47) ^(3) + (1.1) ^(3) - 3 xx 0. 43 xx 1 . 47 xx 1.1)/(( ( 0. 43) ^(2) + (1. 47) ^(2) + (1.1) ^(2) -0. 43 xx 1. 43)- 0. 43 xx 1.1 - 1.47 xx 1.1)

If 143 xx 7 xx 1 = 1001 143 xx 7 xx 2 = 2002 then 143 xx 7 xx 7 = .......

Find the value of: (i) (82)^(2) - (18)^(2) (ii) (128)^(2) - (72)^(2) (iii) 197 xx 203 (iv) (198 xx 198 - 102 xx 102)/(96) (v) (14.7 xx 15.3) (vi) (8.63)^(2) - (1.37)^(2)

Evaluate: ((12)/(35)xx(147)/(44))+((6)/(-90)div(132)/(36))-((5)/(24)xx(72)/(55))

4.4xx5.8xx11.5-141.27=?( a) 121.17 (b) 147.51 (c) 152.21 (d) 187.95 (e) None of these

1+(1)/(4)+(1.4)/(4.8)+(1.4.7)/(4.8.12)+….=

The inverse of [(1,3,3),(1,4,3),(1,3,4)] is