SSC CHSL 2021131)If \({x-{1\over x}}=2\sqrt2\), then what will be the value of \( x^3-\frac{1}{x^3}\) ?
22√2
SSC CHSL 2021132)If \(x+{81\over x}= 18\) where x > 0, then the value of \(x^2+\frac{162}{x^2}\) is:
83
SSC CHSL 2021133)If (3x + 2y)3 + (3x - 2y)3 = 3kx(3x2 + 4y2), then the value of k will be:
6
SSC CHSL 2021134)If 27x3 - 64y3 = (Ax + By)(Cx2 + Dy2 - Exy), then value of (A - B + C - D + E) will be:
-12
SSC CHSL 2021135)If x + 2y = 19 and x3 + 8y3 = 361, then xy is equal to:
57
SSC CHSL 2021136)If \(x^4+{1\over x^4}=1154\), x > 0, then what will be the value of \(x+\frac{1}{x}\)?
6
SSC CHSL 2021137)If x + y = 27 and x2 + y2 = 425, then the value of (x - y)2 will be:
121
SSC CHSL 2021138)If x ∶ y = 4 ∶ 5, then the value of (8x - 6y) ∶ (9x - 7y) is:
2 : 1
SSC CHSL 2021139)If a2 + b2 + c2 = 576 and (ab + bc + ca) = 50, then what is the value of (a + b + c), if (a + b + c) < 0?
-26
SSC CHSL 2021140)If 3x + y = 12 and xy = 9, then the value of (3x - y) is:
6