SSC CHSL 202111)If 2x2 - 6x = 1, then x2 + \(\frac{1}{4x^2}\)=?
10
SSC CHSL 202112)If x4 - 142x2 + 1 = 0, then the value of \(x^3+1/x^3\) is
1692
SSC CHSL 202113)If a2 + b2 = 25, x2 + y2 = 17 and ax + by = 8, then what is the value of (ay - bx)?
19
SSC CHSL 202114)Given that (2x + y)3 - (x + 2y)3 = (x - y) [A(x2 + y2) + Bxy], the value of (2A - B) is:
1
SSC CHSL 202115)If then \( \rm k - \frac{3}{k} = 5\) what is the value of \( \rm k^2 + \frac{9}{k^2} \)?
31
SSC CHSL 202116)If x3 + y3 = 468 and x + y = 12, then the value of x4 + y4 will be:
3026
SSC CHSL 202117)If a2 + b2 + c2 + 170 = 2 (8a + 5b - 9c), then the value of \(\rm \sqrt {4a + 8b -c}\) will be:
9
SSC CHSL 202118)If x + y + z = 5, \(\rm \frac{1}{x}+\frac{1}{y}+\frac{1}{z}=0\) , xyz = 12, and x3 + y3 + z3 = 151 then the value of (x2 + y2 + z2) is:
23
SSC CHSL 202119)If x + y = 5 and \(\rm \frac{1}{x}+\frac{1}{y}=\frac{20}{9} \), then the value of (x3 + y3) will be:
\(\rm \frac{365}{4}\)
SSC CHSL 202120)If 49a2 + 25b2 = 30 and ab = 1, a, b > 0, then the value of (7a + 5b) is:
10