(i) 64 = (8)2
= 8
(ii) 32 = (2 × 2 × 2 × 2 × 2) = (25) = (25)
= 2
(iii) 125 = (5 × 5 × 5) = 53
= 5
Simplify : (i) 2 . 2 (ii) ()7 (iii) 11 / 11 (iv) 7 . 8
Find: (i) 9 (ii) 32 (iii) 16 (iv) 125 -
In Fig. 9.26, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC.