Question
If a2 + b2 + c2 = 21,
(a + b + 7) = 21, then find the value of (ab + bc + ca).Solution
We know, (a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca) Or, (21)2 = 21 + 2(ab + bc + ca) Or, 441 = 21 + 2(ab + bc + ca) Or, ab + bc + ca = (441 – 21) ÷ 2 = 210
Find the word with the appropriate similar meaning of the word in Italic from the options given:
The opulent mansion was a testament to his wea...
- Each of the following questions consists of two words which have a relationship to each other. This is followed by four pairs of related words. Choose the ...
a feeling of deep regret or guilt for doing something wrong
Select the synonym of the given word-
PROFLIGATE
Select the most appropriate ANTONYM of the given word.
Humane
Select the most appropriate synonym of the given word. Â Â Â Â Â Â Â Â Â Â Â Â Â Â
Repulsive
...Choose the word which is opposite in meaning to the word - Extraneous
Find out the wrongly spelt word and mark that option as the answer.
Choose the correct synonym for the word "Vast":
Choose the incorrectly spelt word.
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