In the given question, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer
I. 2a2 + 388a = 0
II. 4b2 – 144b = 0I. 2a2 + 388a = 0
⇒ 2a(a + 194) = 0
Then, a = 0 or a = (-194)
II. 4b2 ?– 144b = 0
⇒ 4b(b – 36) = 0
Then, b = 0 or b = 36
So, when a = 0, a = b for b = 0 and a < b for b = 36
And when a = (-194), a < b for b = 0 and a < b for b = 36
∴ we can observe that a ≤ b.2. x3 + y3 = 35 and x + y = 5, then the value of (1/x + 1/y) is
3. If a + 1/a = 14.29% of 42, then find the unit digit of expression a2 + 1/a2.
4. If x = 2 + √3, then what is the value of [√(2x) + 1/√(2x)]
5. Which of the following quadratic equations has real roots?
8. If two angles of a triangle are $21^{0}$ and $38^{0}$, then the triangle is
10. The sum and the difference of two numbers is 120 and 10 respectively. Find the sum of their squares.