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Q11. 1+tan2A/1+cot2A is equal to

Question

(a) sec2 A (b) -1 (c) cot2 A (d) tan2 A

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Class 10 Maths 3 years 1 Answer 4 views Enlightened 0

Q10.In the given figure, if AB = 14 cm, BD = 10 cm and DC = 8 cm, then the value of tan B is

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(a) 4/3 (b) 14/3 (c) 5/3 (d) 13/3

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Class 10 Maths 3 years 1 Answer 77 views Enlightened 0

Q9. If cosec θ – cot θ = 1/3, the value of (cosec θ + cot θ) is

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(a) 1 (b) 2 (c) 3 (d) 4

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Class 10 Maths 3 years 1 Answer 5 views Enlightened 0

Q8. If cos (40° + A) = sin 30°, then value of A is

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(a) 30° (b) 40° (c) 60° (d) 20°

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Class 10 Maths 3 years 1 Answer 13 views Enlightened 0

Q7. The maximum value of 1/cosecα is

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(a) 0 (b) 1 (c) √32 (d) –1√2

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Class 10 Maths 3 years 1 Answer 20 views Enlightened 0

Q6. The value of sin2 30° – cos2 30° is

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(a) –12 (b) √32 (c) 32 (d) –23

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Class 10 Maths 3 years 1 Answer 9 views Enlightened 0

Q5. If √2 sin (60° – α) = 1 then α is

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(a) 45° (b) 15° (c) 60° (d) 30°

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Class 10 Maths 3 years 1 Answer 9 views Enlightened 0

Q4. sin (45° + θ) – cos (45° – θ) is equal to:

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(a) 2 cos θ (b) 0 (c) 2 sin θ (d) 1

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Class 10 Maths 3 years 1 Answer 6 views Enlightened 0

Q3. If tan θ = 3, then 4sinθ−cosθ/4sinθ+cosθ is equal to

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(a) 23 (b) 13 (c) 12 (d) 34

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Class 10 Maths 3 years 1 Answer 9 views Enlightened 0

Q2. Given that sin α = 1/2 and cos β = 1/2, then the value of (α + β) is

Question

(a) 0° (b) 30° (c) 60° (d) 90°

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Class 10 Maths 3 years 1 Answer 7 views Enlightened 0

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class 10 trignometry