Given, x2 - 7x + 1 = 0 Or, x2 + 1 = 7x - [I] x + 1/x = 7 - [II] = 3 + ( x 6 + x 4 + x 2 + 1)/ 7x 3 = 3 + { x 4( x 2 + 1) + ( x 2 + 1)}/( x 2 + 1) x 2 = 3 + ( x 2 + 1) + ( x 4 + 1)}/( x 2 + 1) x 2 = 3 + ( x 4 + 1)/ x 2 = 3 + x 2 + 1/ x 2 On squaring equation [II] x2 + 1/x2 + 2 = 49 Adding '1' both sides, we get x2 + 1/x2 + 3 = 50
Bhawna won 3/5 of the marbles that were there at the beginning of the game. Ravi won 2/3 of the remaining marbles while Sunny won the remaining 80 marbl...
For a data set value of median and mean are respectively 8 and 5, then find the value of mode?
Sum of squares of three consecutive numbers is 1589. Find the sum of first and third number.
How many integers are there between 50 and 600 that are divisible by both 15 and 25?
The sum of (p/q)+(q/r)+(r/s)+(s/t) = (239/60). The value of ‘q’ is one less than the value of ‘s’. The average of ‘p’ and ‘s’ is 4. The ...
One-fourth of a number is 70. What will 40% of that number?
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120 is divided into two parts in such a way that the sixth part of the first part and the seventh part of the second are in the ratio 5 : 6. How much pe...
If the difference of two numbers is 4 and the difference of their squares is 56, then the larger number is
