SSC CHSL 202191)If a2 + 4b2 + 25c2 + 18 = 2 (a - 2b + 20c), then what is the value of (a + 2b + 5c) ?
4
SSC CHSL 202192)If x + y + z = 4, xy + yz + zx = 1 and x3 + y3 + z3 = 34 , then what is the value of 2xyz ?
-12
SSC CHSL 202193)If \(x+{1\over x}=7\), then \(x^3 + \dfrac{1}{x^3}\) is equal to:
322
SSC CHSL 202194)If x2 + y2 = 45 and x - y = 5 then what is the value of x3 - y3?
275
SSC CHSL 202195)If a3 + b3 + c3 - 3abc = 250 and a + b + c = 10, then what will be the value of \(\frac{1}{5}(ab+bc+ca)\) ?
5
SSC CHSL 202196)If x + y + z = 3, x2 + y2 + z2 = 45 and x3 + y3 + z3 = 69 then what is the value of xyz?
-40
SSC CHSL 202197)If 4√3x2 + 5x -2√3 = (Ax + 2)(Bx + C). then what is the value of (A + B + C)?(A>0)
4
SSC CHSL 202198)If \(x+{1\over x}= \sqrt7\), then what is the value of \((x^2 + 1)\div\left[x^4+\left(\frac{1}{x^2}\right)\right]\)?
\(\frac{1}{4}\)
SSC CHSL 202199)If \(x - y ={7\over4}\) and \(\frac{1}{x}-\frac{1}{y}=\frac{14}{3}\), then x3 - y3 is equal to:
\(\frac{217}{64}\)
SSC CHSL 2021100)If a4 + b4 + a2b2 = 133 and a2 + b2 - ab = 19, then the value of ab will be:
-6