Question
Solve for x in the interval [0, 2π]: 2 sin²x + 3 sinx
- 2 = 0.Solution
Let sin x = y. Then, 2y² + 3y - 2 = 0. Solving, we get y = -2 or y = 1/2. Thus, sin x = 1/2 gives x = π/6, 5π/6. Correct answer: a
1231 + 1312 + 2113 – 3211 = ?
Determine the value of ‘a’ if a = √529 + √1444
[192 ÷ 6 × 5] ÷ (? + 3) = 20Â
[(120)2 ÷24 ×25] ÷ 250 =?
What will come in the place of question mark (?) in the given expression?
(252 + 198) ÷ ? + 126 ÷ 3 = 144 ÷ 2
What value should come in the place of (?) in the following questions?
70% of 240 + 75% of ? = 45 * 55 ÷ 5
Ravi is 12 years younger than Surya. Ravi's age is 40% of the sum of his and Surya's age. What will be Surya's age 9 years hence?Â
What will come in the place of question mark (?) in the given expression?
√64 X 9 ÷ 3 + 12 X 3 = ? + 3655% of ? = 45 + 20 × 6
