If xy = -18 and $x^{2}+y^{2}$ = 85, then find the value of (x + y).

If xy = -18 and $x^{2}+y^{2}$ = 85, then find the value of (x + y).
1). 8
2). 10
3). 9
4). 7

SSC CGL Books

---

Join Telegram Group

Answer This Question
Name:
Email:
Answer :
Sum of (1+1)
Submit:

Other Questions

1. In the following question two equations are given in variables x and y. You have to solve these equations and determine relation between x and y. I. 30x + 7y = 50 II. 420x + 91y = 560

2. The radii of two concentric circles are 17 cm and 25 cm. A straight line PQRS intersects the larger circle at the points P and S and intersects the smaller circle at the points Q and R. If QR = 16 cm, then the length ( in cm.) of PS is

3. Let ABC be an equilateral triangle and AX,BY, CZ be the altitudes. Then the right statement out of the four given responses is

4. What approximate value should come in place of question mark (?) in the following questions ?(You are not expected to calculate the exact value)

5. The numerator and denominator of the fraction are in the ratio 15 : 8, if the numerator of the fraction is decreased by 9 and the denominator is increased by 6 their division gives a quotient of 1.5. Find the fraction.

6. The 3rd and 6th term of an arithmetic progression are 19 and 37 respectively. What is the 13th term?

7. If $\frac{1}{√(1+tan^{2}A)} = x$, then value of x is

8. \({\rm{If\;}}{x^2} + \frac{1}{{{x^2}}}\; = \;58,{\rm{\;find\;the\;value\;of\;}}{\left( {x - \frac{1}{x}} \right)^2}\)

9. It is given that, \(y = \; \propto \frac{1}{{\left( {{x^3} - x} \right)}}.\) For x = 2, we have y = 1/2. If x = 3, then the value of y is

10. A point Q is 13 cm from the centre of a circle. The length of the tangent drawn from Q to a circle is 12 cm. The distance of Q from the nearest point of the circle is