using a suitable identity and without multiplying directly ,find the value of (0.98×1.02)
Answers
Answered by
89
0.98×1.02
(1-0.02)×(1+0.02)
using a²-b² = (a+b)(a-b)
(1)²-(0.02)² = 1-0.0004 =0.9996
hope this helps
(1-0.02)×(1+0.02)
using a²-b² = (a+b)(a-b)
(1)²-(0.02)² = 1-0.0004 =0.9996
hope this helps
Answered by
56
Using Identity : (a+b) (a-b) = a2- b2
(0.98) (1.02)
= (1.00 - 0.02) (1.00 + 0.02)
= (1.00)2 - (0.02)2
= 1 - 0.0004
= 0.9996
(0.98) (1.02)
= (1.00 - 0.02) (1.00 + 0.02)
= (1.00)2 - (0.02)2
= 1 - 0.0004
= 0.9996
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