Question
If x2a = y2b =z2c ≠
0 and x2 = yz, then the value of (ab + bc + ca) /bc is :Solution
x 2a =y2b =z2c =k x 2a =k x =(k)2a y =(k)1/2b z =(k) 1/2b x 2 =yz ((k) 1/2b )2=(k) 1/2b (k) 1/2b (k) 1/a = (k) 1/2b + 1/2b 1/a = 1/2b + 1/2c By adding 1/2a both sides, 1/a +1/ 2a =1/ 2a +1/ 2b +1/ 2c 3/2a = (ab + bc + ac) /2abc (ab + bc + ac) /bc = 3
Something which is momentary
Select the most appropriate antonym of the given word.
SPARSE
- Select the most appropriate meaning of the given word.
Luminous GLOOMY
Procrastinate
In the following questions, out of the four alternatives, choose the one which best expresses the meaning of the given word as your answer.
PE...
In each of the following questions, three out of four words given have the same meaning. Mark the number as your answer which is different in meaning ...
Fear or hatred for books.
Find the word with the appropriate similar meaning of the word in Italic from the options given:
His jovial demeanor brightened up the room.
Choose the word opposite in meaning to the given word:
Benevolent
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