Using suitable identities, evaluate: a) 1022 b) 512 - 492 c) 992
Answers
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Answer:
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is 5041.
(ii)
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is 9801.
(iii)
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is 10404.
(iv)
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is 996004.
(v)
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is .
(vi)
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is 89991.
(vii)
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is 6396.
(viii)
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is 79.21.
(ix)
Given, .
It can be written as .
Use identity .
Simplifying the expression we get,
Therefore, value of is