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Trigonometry (Part-7)
📆 July 21, 2025
Total Questions: 50
21.
Solve it-
[SSC CGL 14/07/2023 (3rd Shift)]
(a)
(b)
(c)
(d)
Correct Answer:
(a)
Solution:
22.
Simplify the following.
[SSC CGL 14/07/2023 (4th Shift)]
(a) 1 + sinα cosα
(b) tanα
(c) 1 - sinα cosα
(d) secα
Correct Answer:
(c) 1 - sinα cosα
Solution:
23.
If tan π/6 + sec π/6 = x, then find x.
[SSC CGL 17/07/2023 (2nd Shift)]
(a) √3
(b) 1/√3
(c) -1/√3
(d) 2/√3
Correct Answer:
(a) √3
Solution:
24.
If cosx = -(1/2), x lies in third quadrant, then tanx = ?
[SSC CGL 17/07/2023 (3rd Shift)]
(a) √3
(b) √3/2
(c) 2/√3
(d) 1/√3
Correct Answer:
(a) √3
Solution:
25.
Using cos (A+B) = cosA cosB - sinA sinB, find the value of cos75º.
[SSC CGL 17/07/2023 (3rd Shift)]
(a)
(b)
(c)
(d)
Correct Answer:
(c)
Solution:
26.
Solve it-
[SSC CGL 17/07/2023 (4th Shift)]
(a) 1
(b) 2
(c) -1
(d) 0
Correct Answer:
(a) 1
Solution:
27.
Simplify
[SSC CGL 18/07/2023 (1st Shift)]
(a) -2
(b) 2
(c) 0
(d) 1
Correct Answer:
(d) 1
Solution:
28.
If tan A/2 = x, then find x.
[SSC CGL 18/07/2023 (1st Shift)]
(a)
(b)
(c)
(d)
Correct Answer:
(c)
Solution:
29.
The value of-
[SSC CGL 18/07/2023 (2nd Shift)]
(a) 0
(b) 2
(c) 3
(d) 1
Correct Answer:
(d) 1
Solution:
30.
Simplify the following:
[SSC CGL 18/07/2023 (2nd Shift)]
sin 2x + 2 sin4x + sin 6x
(a) 4 cos²x sin 4x
(b) 4 cos²x sin x
(c) 2 cos²x sin4x
(d) 4 sin²x sin4x
Correct Answer:
(a) 4 cos²x sin 4x
Solution:
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