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Question 1 of 29
1. Question
If cos (α + \(\beta\)) = 0, then sin (α – \(\beta\)) can be reduced to
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Question 2 of 29
2. Question
If cos (40° + A) = sin 30°, the value of A is:?
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Question 3 of 29
3. Question
If sin x + cosec x = 2, then sin19x + cosec20x =
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Question 4 of 29
4. Question
If cos 9a = sin a and 9a < 90°, then the value of tan 5a is
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Question 5 of 29
5. Question
7 sin2θ + 3 cos2θ = 4 then :
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Question 6 of 29
6. Question
(1 + tanθ + secθ) (1 + cotθ – cosecθ) is equal to
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Question 7 of 29
7. Question
Ratios of sides of a right triangle with respect to its acute angles are known as
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Question 8 of 29
8. Question
If tan θ = \(\frac { 12 }{ 5 }\), then \(\frac { 1+sinθ }{ 1-sinθ }\) is equal to
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Question 9 of 29
9. Question
The value of cos θ cos(90° – θ) – sin θ sin (90° – θ) is:
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Question 10 of 29
10. Question
If x = a cos θ and y = b sin θ, then b2x2 + a2y2 =
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Question 11 of 29
11. Question
If ΔABC is right angled at C, then the value of cos (A + B) is
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Question 12 of 29
12. Question
If x and y are complementary angles, then
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Question 13 of 29
13. Question
sin (45° + θ) – cos (45° – θ) is equal to
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Question 14 of 29
14. Question
If 0° < θ < 90°, then sec 0 is
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Question 15 of 29
15. Question
In right triangle ABC, right angled at C, if tan A = 1, then the value of 2 sin A cos A is
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Question 16 of 29
16. Question
Given that sin A=\(\frac { 1 }{ 2 }\) and cos B=\(\frac { 1 }{ \sqrt { 2 } }\) then the value of (A + B) is:
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Question 17 of 29
17. Question
If sin A = \(\frac { 1 }{ 2 }\), then the value of cot A is
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Question 18 of 29
18. Question
If \sqrt{3tanθ = 3sinθ, then the value of sin2θ−cos2θ is
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Question 19 of 29
19. Question
Out of the following options, the two angles that are together classified as complementary angles are
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Question 20 of 29
20. Question
If sin θ − cos θ = 0, vthen the value of θ is
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Question 21 of 29
21. Question
If tan 2A = cot (A – 18°), then the value of A is
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Question 22 of 29
22. Question
If cos A + cos2 A = 1, then sin2 A + sin4 A is
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Question 23 of 29
23. Question
If sin θ + sin2 θ = 1, then cos2 θ + cos4 θ = ____
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Question 24 of 29
24. Question
sin 2B = 2 sin B is true when B is equal to
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Question 25 of 29
25. Question
25. The value of cos 0°. cos 1°. cos 2°. cos 3°… cos 89° cos 90° is
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Question 26 of 29
26. Question
26. If x tan 45° sin 30° = cos 30° tan 30°, then x is equal to
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Question 27 of 29
27. Question
27. If x and y are complementary angles, then
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Question 28 of 29
28. Question
28. sin 2B = 2 sin B is true when B is equal to
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Question 29 of 29
29. Question
29. If A, B and C are interior angles of a ΔABC then cos(B+C2) is equal to
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