B) Evaluate using appropriate identity i) (102)2 ii) (201 x199)
Answers
Answered by
1
Step-by-step explanation:
201×199=(200+1)(200−1)
=(200)
2
−(1)
2
[Using, (a+b)(a−b)=a
2
−b
2
]
=40000−1
=39999
Answered by
0
How do you evaluate 102 square?
=10000+4+400=10404.
Which of the following identities are used to solve 194 * 206?
194*206 can be written as: (200-6)*(200+6). The identity we are going to use in this case is (a-b)(a+b) = a²-b². So, (200-6)(200+6) = (200)²-(6)².
What will be the value of 102 5?
=11040808032.
What are the 7 identities in maths?
(a – b)2 = a2 + b2 – 2ab. (a + b)3 = a3 + b3 + 3ab(a + b) = a3 + b3 + 3a2b + 3ab. (a – b)3 = a3 – b3 – 3ab(a – b) = a3 – b3 – 3a2b + 3ab. (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca.
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