കൃത്യങ്കങ്ങൾ
കൃത്യങ്കങ്ങൾ
am x an = amn a-n = 1/an (am)n = amn am/an = am-n am = an m=n (a\b)n = an/bn a0 = 1, a ≠ 0 ഉദാ: 1) (32)3/5 x (64)-1/6 x (8)-1/3 എത്ര? (LDC Kottayam 2014) a) 8 b) 1 c) 16 d) 2 (32)3/5 = [(32)1/5]3 = 23 = 8 (64)-1/6 = [(64)1/6]-1 = 2-1 (8)-1/3 = [(8)1/3]-1 = 2-1 (32)3/5 x (64)-1/6 x (8)-1/3 = 8 x ½ x ½ =2 (d) 2) 8x7/4x3 ÷ 2x4 = ? (LDC Kollam 2011) a) 2x4 b) 2x2 c) x4 d) 1 8x7/4x3 ÷ 2x4 = 2x7/x3 ÷ 2x4 = 2x7-3 ÷ 2x4 = 2x4 ÷ 2x4 = 1 (d)
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kruthyankangal
am x an = amn a-n = 1/an (am)n = amn am/an = am-n am = an m=n (a\b)n = an/bn a0 = 1, a ≠ 0 udaa: 1) (32)3/5 x (64)-1/6 x (8)-1/3 ethra? (ldc kottayam 2014) a) 8 b) 1 c) 16 d) 2 (32)3/5 = [(32)1/5]3 = 23 = 8 (64)-1/6 = [(64)1/6]-1 = 2-1 (8)-1/3 = [(8)1/3]-1 = 2-1 (32)3/5 x (64)-1/6 x (8)-1/3 = 8 x ½ x ½ =2 (d) 2) 8x7/4x3 ÷ 2x4 = ? (ldc kollam 2011) a) 2x4 b) 2x2 c) x4 d) 1 8x7/4x3 ÷ 2x4 = 2x7/x3 ÷ 2x4 = 2x7-3 ÷ 2x4 = 2x4 ÷ 2x4 = 1 (d)