trigonometry maths

1. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
The value of θ for which cos(10° + θ) = sin 30° , is
50°
40°
80°
20° [CBSE 2020] [1 Mark]

2. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
The value of θ for which sin (44° + θ) = cos 30° , is
46°
60°
16°
90° [CBSE 2020] [1 Mark]

3. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
If tan A = 1, then 2 sin A cos A = ________. [CBSE 2020] [1 Mark]

4. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
What is the value of (cos2 67° – sin2 23°)? [CBSE 2018] [1 Mark]

5. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
If tan α = 5/12, find the value of sec α. [CBSE 2019] [1 Mark]

6. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
If tan (A+B) = 1 and tan (A-B) = 1/√3, 0° < A+B < 90°, A>B, then find the value of A and B.
[CBSE 2019] [3 Marks]

7. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
Sin^2 60° + 2 tan 45° - cos^2 30° [Allahabad 2019]

8. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
If sin x + cos y = 1; x = 30° and is an acute angle, find the value of y. [CBSE 2019 (30/5/1)]

9. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
Prove that: (1 + cot A - cosec A)(l + tan A + sec A) = 2 [CBSE 2019 (30/1/2)]

10. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
If cos θ + sin θ = √2cos θ , show that cos θ - sin θ = √2 sin θ. [CBSE 2019 (30/ 5/ 1)]

11. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
Prove that: ( sin A + cosec A)^2 + ( cos A + sec A)^2 = 7 + tan^2 A + cot^2 A [CBSE 2019 (30/1/2;]

12. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
If sin (A + 2B) and cos (A + 4B) = 0, A > B, and
A + 4B ≤ 900 then find A and B. [CBSE 2018 (C)]

13. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
[CBSE 2019 (30/5/1)]
Prove that

14. TRIGONOMETRY PYQS CLASS10 || CBSE || UP BOARD ||
[CBSE 2019 (30/5/1)]
Prove that