Question
x, y and z are real numbers. If x3 + y3 + z3 = 13,x + y + z = 1 and xyz = 1, then what is the value of xy + yz + zx?
More Equations Questions
- If a + b2 + c2 = 16, x2 + y2 + z2 = 25 and ax + by + cz = 20, then the value of (a+b+c)/(x+y+z)
- Which is the largest six digit number, which when divided by 12, 15, 20, 24 and 30, leaves the remainders 8, 11, 16, 20 and 26 respectively.
- If x + y + z = 0, then what is the value of (3y2 + x2 + z2)/(2y2 – xz)?
- If the nine-digit number 43x1145y2 is divisible by 88, then the value of (3x — 2y), for the smallest value of y, is:
- If a3 + 3a2 + 9a = 1, then what is the value of a3 + (3/a)?
- If X = (√5 + 1) / (√5 – 1) and y = (√5 – 1) / (√5 + 1) then the value of (x2+xy+y2) / (x2 – xy + y2) is
- If a3 = 117 + b3 and a = 3 + b, then the value of a + b is:
- Solve the equation: 3(x − 2) + 4(2x + 1) = 5(2x − 3) + 7
- If 2y cos θ = x sin θ and 2x sec θ - y cosec θ = 3, then the value of x2+ 4y2 is
- The total number of even factors of 25 × 33 × 52 is:
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
- 200 Questions with Detailed Solutions
- Section-wise Coverage (GA, English, Quant & Reasoning)