find the value using identity 9.9²
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9.9 can also be written as( 10 -0.1)(9.9)² = (10-0.1)² using the formula: (a-b)² = a²+ b² -2ab(10-0.1)² = 100+0.01- ...
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Step-by-step explanation:
Answer. 9.9 can also be written as( 10 -0.1)(9.9)² = (10-0.1)² using the formula: (a-b)² = a²+ b² -2ab(10-0.1)² = 100+0.01-
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