Trigonometry (Part-6)

Total Questions: 50

21. cos⁴A - sin⁴A is equal to : [SSC CHSL 03/08/2023 (3rd Shift)]

Correct Answer: (b) 1 - 2 sin²A
Solution:

22. Solve it- [SSC CHSL 03/08/2023 (4th Shift)]

Correct Answer: (b) 357/484
Solution:

23. What is the value of the expression. [SSC CHSL 04/08/2023 (4th Shift)]

Correct Answer: (a) secA + cosecA
Solution:

24. Simplify the expression. [SSC CHSL 04/08/2023 (4th Shift)]

Correct Answer: (a) 1
Solution:

25. If secθ + tanθ = √3, then the possitive value of sinθ + cosθ is : [SSC CHSL 04/08/2023 (3rd Shift)]

Correct Answer: (a)
Solution:

26. If 2Tan²A + 4Cos⁴A = 3, then the possible value of A is : [SSC CHSL 04/08/2023 (4th Shift)]

Correct Answer: (a) 45º
Solution:

27. If a = cotA + cosA and b = cotA - cosA, then find the value of a² - b² - 4 √ab. [SSC CHSL 04/08/2023 (4th Shift)]

Correct Answer: (a) 0
Solution:

28. The given expression is equal to: [SSC CHSL 07/08/2023 (1st Shift)]

Correct Answer: (b) sin²Φ cot²Φ
Solution:

29. Find the value of cot²B - cosec²B for 0 < B <90º. [SSC CHSL 07/08/2023 (1st Shift)]

Correct Answer: (c) -1
Solution:

1 + cot²B = cosec²B
cot²B - cosec²B = -1

30. In ΔOPQ, right-angled at P, OP = 7 cm and OQ - PQ = 1cm. Determine the values of sin Q + cos Q . [SSC CHSL 07/08/2023 (2nd Shift)]

Correct Answer: (c) 31/25
Solution: