SSC Selection Post Matric 2022181)If x - y = 4 and x3 - y3 = 316, y > 0, then the value of x2 - y2 is:
40
SSC Selection Post Matric 2022182)If a + b + c = 8 and ab + bc + ca = 11, then what is the value of \(\left(\frac{a^2+b^2+c^2-3abc}{4}\right)\)?
62
SSC Selection Post Matric 2022183)If a + b = \(3\over4\) and ab = \(\frac{1}{8}\), then the value of a4 + b4 + ab3 + ba3 is:
\(\frac{27}{256}\)
SSC Selection Post Matric 2022184)If x2 + y2 + z2 + 26 = 2(4x + y + 3z), then find the value of x + y + z.
8
SSC Selection Post Matric 2022185)If \(x+{1\over x}= 1 -\sqrt2\), then find the value of \(x^3+{1\over x^3}\).
\(4 - 2 \sqrt2\)
SSC Selection Post Matric 2022186)If \(x+{1\over x}=5\), then find the value of \(x^2+{1\over x^2}\).
23
SSC CPO 2020187)If a2 + b 2 + c 2+ 216 = 12 ( a + b − 2 c ), then \(\sqrt{ab-bc+ca} \), is:
6
SSC CPO 2020188)If x4 + x-4 = 194, x > 0, then the value of \(x+\dfrac{1}{x} \) is:
4
SSC CPO 2020189)If \(( 5\sqrt 5 x^ 3 − 3\sqrt 3 y^ 3 ) ÷ ( \sqrt 5 x − \sqrt 3 y ) = ( A x ^2 + B y^ 2 + C x y )\) then value of \((3A+ B- \sqrt{15} C)\) is:
3
SSC CPO 2020190)The students of a class donated a sum of Rs. 2,209. If each student donated as many rupees as the number of students in the class, then the number of students in the class is:
47