Q86Multiple choice
Using suitable identities, evaluate the following.
- (i)(52)2
- (ii)(49)2
- (iii)(103)2
- (iv)(98)2 (v) (1005)2 (vi) (995)2 (vii) 47 × 53 (viii) 52 × 53 (ix) 105 × 95 (x) 104 × 97 (xi) 101 × 103 (xii) 98 × 103 (xiii) (9.9)2 (xiv) 9.8 × 10.2 (xv) 10.1 × 10.2 (xvi) (35.4)2 – (14.6)2 (xvii) (69.3)2 – (30.7)2 (xviii) (9.7)2 – (0.3)2 (xix) (132)2 – (68)2 (xx) (339)2 – (161)2 (xxi) (729)2 – (271)2
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(i) (52)2
(ii) (49)2
(iii) (103)2
(iv) (98)2 (v) (1005)2 (vi) (995)2 (vii) 47 × 53 (viii) 52 × 53 (ix) 105 × 95 (x) 104 × 97 (xi) 101 × 103 (xii) 98 × 103 (xiii) (9.9)2 (xiv) 9.8 × 10.2 (xv) 10.1 × 10.2 (xvi) (35.4)2 – (14.6)2 (xvii) (69.3)2 – (30.7)2 (xviii) (9.7)2 – (0.3)2 (xix) (132)2 – (68)2 (xx) (339)2 – (161)2 (xxi) (729)2 – (271)2