I. x2 + 12√2 x + 22 = 0
II. y2 - 13√2 y – 28 = 0
I. x2 + 12√2 x + 22 = 0 (x + 11√2) (x + √2) = 0 x = - 11√2, -√2 II. y2 - 13√2 y – 28 = 0 (y - 14√2) (y + √2) = 0 y = - √2, 14√2 Hence, x ≤ y Alternate Method: if signs of quadratic equation is +ve and +ve respectively then the roots of equation will be -ve and -ve. So, roots of first equation = x = -11√2, -√2 if signs of quadratic equation is -ve and -ve respectively then the roots of equation will be +ve and -ve. (note: -ve sign will come in smaller root) So, roots of second equation = y = - √2, 14√2 After comparing roots of quadratic equation we can conclude that x ≤ y.
The sequence of folding a piece of paper and the manner in which the folded paper is cut is shown in the following figures. How would this paper look wh...
Which two mathematical signs should be interchanged to make the given equation correct?
15 × 3 ÷ 15 – (45 × 3) – 10 + (13 ÷ 2) = 76
...Eight persons P, Q, R, S, T, U, V and W are sitting around a square table for dinner in such a way that 4 persons are sitting at the four corners and 4 ...
A paper has been folded and cut as shown. Figure (X) shows the manner in which the folded paper has been cut. Choose a figure which would most closely r...
Read the given statements and conclusions carefully. Decide which of the given conclusions is/are true based on the given statements
Statements:...
In a certain code language, ‘INFERRING’ is written as ‘TMRIIVUMR’. What is the code for ‘STATEMENT’ in that code language?
...Select the letter-pair that can replace the question mark (?) in the following series.
KP, HM, EJ, BG, ?
Select the figure from among the given options that can replace the question mark (?) in the following series.
A boy starts from point A and walks 11 km towards east and stops at point B. Now, he turns 45 degrees to his right and walks 2 km to reach point C. Now,...
Shown below are two different positions of the same dice, whose six faces are marked with numbers from 1 to 6. Select the number which will be on the fa...
