Question
What is the value of (a² + b²+4c²- ab-2bc-2ca) (a +
b+2c):Solution
(a + b + 2c) (a² + b² + 4c2- ab - 2bc - 2ca) As we know, = a3 + b³ + c3 – 3abc = (a + b + c) (a² + b² + c² - ab - bc - ca) Put the value of c =2c. a³+b³ + 8c3 - 6abc = (a + b + 2c) (a² + b² + 4c2- ab - 2bc - 2ca). answer is a³+b³ + 8c3 - 6abc.
Select the word with the correct spelling.
In the following question select the answer pair that expresses a relationship most similar to that expressed in the capitalised pair.
Obfuscat...
Select the most appropriate ANTONYM of the bold word.
The manager was suspended as he was having a clandestine affair.
Choose the word that means the same as the given word.
Quandary
Choose the one which best expresses the meaning of the given word .
Nebulous
In each question below, four words printed in bold type are given. These are numbered (A), (B), (C) and (D). One these words printed in bold might eith...
Suppress
Find the appropriate answer.
- Choose the word that is most similar in meaning to the bold word.
The ephemeral nature of life reminds us to appreciate each moment.
... Rejection of a proposal or idea
Relevant for Exams:
