Question
If a3 + b3 = 6240 and a + b = 30,
then find the value of {(a + b)2 – 3ab}Solution
Since, {(a + b)2 – 3ab} = a2 + b2 + 2ab – 3ab = a2 + b2 – ab And, (a3 + b3) = (a + b)( a2 + b2 – ab) So, (a2 + b2 – ab) = 6240/30 = 208
In the following questions assuming the given statements to be true, find which of the conclusion among given conclusions is/are definitely true and the...
In the question, assuming the given statements to be true, find which of the conclusion (s) among given two conclusions is /are definitely true and the...
Statements: T @ V % Z # D & B $ S # E; W $ Z @ C
Conclusions : I. E @ Z ...
Statements: I $ N, N # U, U @ E, E & S
Conclusions: I. E & N II. S @ N III. I $ U
...Statement: L ≥ X ≤ Z > Y ≤ A, Y = B ≥ C
Conclusion: I. C >A II. A ≥ C
...Statement: C > B > T < J > D > M < Z
Conclusion: I. C > M II. C > Z
Read the given statement and conclusions carefully. Decide which of the given conclusions is/are true based on the statement.
Statement:
U...
Statements: S > T > W = U ≤ V ≤ I, X > Y = S
Conclusions:
I. W > Y
II. I ≥ T
III. U < Y
Statements:
J © K * R, U % R $ Z
Conclusions:
I. Z $ J
II. U % K
III. U © J
In which of the following expressions will the expression ‘S > Y’ and ‘R > Y be definitely true?
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