1. Match the following:
Column A (Equation/Expression) Column B (Value/Result)
(i) sin⁴θ + cos⁴θ (a) 1/4
(ii) tan θ + cot θ (b) 1 − 2 sin²θ cos²θ
(iii) sin 2θ / (1 + cos 2θ) (c) 2 / sin 2θ
(iv) sin 30° · cos 60° (d) tan θ
2. Match the following:
Column A (Figure/Concept) Column B (Property/Formula)
(i) Section Formula (a) 2πrh
(ii) Volume of a Cylinder (b) 2π(r + h)
(iii) Surface Area of a Cylinder (c) √[(x₂ − x₁)² + (y₂ − y₁)²]
(iv) Distance Formula (d) (mx + nx)/(m+n), (my + ny)/(m+n)
3. Assertion (A): The quadratic equation x² + px + q = 0 has real and distinct roots if p² − 4q > 0.
Reason (R): The discriminant of a quadratic equation ax² + bx + c = 0 is b² − 4ac.
4. If α and β are the roots of the equation 2x² − 3x + 5 = 0, then (1/α) + (1/β) is:
5. The sum of the first n terms of an AP is 2n² + 3n + 5. The 16th term is:
6. If the points (a,0), (0,b), and (1,1) are collinear, then 1/a + 1/b is:
7. A solid sphere of radius r is melted and recast into a cone of height h. Then, the radius of the base of the cone is:
8. If tan θ + sec θ = l, then sec θ is:
9. The probability of getting a sum of 9 from two throws of a dice is:
10. If the radii of the ends of a frustum of a cone are r₁ and r₂ (r₁ > r₂), and the height is h, then the volume of the frustum is:
11. The median of the data set: 25, 15, 23, 40, 27, 25, 23, 42 is:
12. Case-Based: A lighthouse is 100 meters high. The angles of depression of two ships are 30° and 45°. If the ships are on the same side of the lighthouse:
(i) What is the distance of the first ship from the lighthouse?
(ii) What is the distance of the second ship from the lighthouse?
(iii) What is the distance between the ships?
(iv) Which ship is closer to the lighthouse?
13. Case-Based: A metallic sphere of radius 10 cm is melted into a wire of diameter 2 mm.
(i) What is the volume of the sphere?
(ii) What is the radius of the wire?
(iii) What is the length of the wire?
(iv) If bent into a circle, what is the radius of the circle?
14. Case-Based: A quadratic polynomial p(x) has zeroes α and β such that α + β = 6, αβ = 4.
(i) Find the quadratic polynomial p(x).
(ii) Find the value of α² + β².
(iii) Find the value of (1/α) + (1/β).
(iv) Find the value of α³ + β³.
15. Case-Based: A box contains 5 red balls, 8 white balls, and 4 green balls. One ball is drawn at random:
(i) Probability of drawing a red ball?
(ii) Probability of drawing a white ball?
(iii) Probability of drawing a green ball?
(iv) Probability of drawing a red or white ball?