Trigonometry Practice Question and Answer

Q: If $$ sec θ ={13 \over 12}$$, and θ is acute, then what is the value of $$ \sqrt { cotθ+tanθ} \ $$ is...... 1165 0

  • 1
    $$ {4 \over 13}$$
    Correct
    Wrong
  • 2
    $$ {12 \over 2\sqrt{13}}$$
    Correct
    Wrong
  • 3
    $$ {13 \over 2\sqrt{15}}$$
    Correct
    Wrong
  • 4
    $$ {2 \over 13}$$
    Correct
    Wrong
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Answer : 2. "$$ {12 \over 2\sqrt{13}}$$"

Q:

If 4sin2 θ – 1 = 0 and angle θ is less than 900. The value of cos2 θ + tanθ is:
(Take 00 < θ < 900

842 0

  • 1
    $$ 13\over 12$$
    Correct
    Wrong
  • 2
    $$ 12\over 11$$
    Correct
    Wrong
  • 3
    $$ 11\over 9$$
    Correct
    Wrong
  • 4
    $$ 17\over 15$$
    Correct
    Wrong
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Answer : 1. "$$ 13\over 12$$"

Q:

What is the value of

1201 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    -1
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 2. "1"
Explanation :

undefined

Q:

The value of $$(x^{b+c})^{b-c}. (x^{c+a})^{c-a}.(x^{a+b})^{a-b}$$ when (x≠0).

1355 0

  • 1
    1
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    -1
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 1. "1"

Q: If sinθ-cosθ= \({7\over13}\) and 0º <θ<90°, then the value of Sinθ+Cosθ is 1125 0

  • 1
    \({17\over13}\)
    Correct
    Wrong
  • 2
    \({13\over17}\)
    Correct
    Wrong
  • 3
    \({1\over13}\)
    Correct
    Wrong
  • 4
    \({1\over17}\)
    Correct
    Wrong
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Answer : 1. "\({17\over13}\)"

Q: What is the value of the following 

1077 0

  • 1
    cosec A
    Correct
    Wrong
  • 2
    cos A
    Correct
    Wrong
  • 3
    secA
    Correct
    Wrong
  • 4
    sinA
    Correct
    Wrong
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Answer : 3. "secA"

Q:

A tower standing on a horizontal plane subtends a certain angle at a point 160 m apart from the foot of the tower. On advancing 100 m towards it, the tower is found to subtend and angle twice as before. The height of the tower is

2672 1

  • 1
    80 m
    Correct
    Wrong
  • 2
    100 m
    Correct
    Wrong
  • 3
    160 m
    Correct
    Wrong
  • 4
    200 m
    Correct
    Wrong
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Answer : 1. "80 m"

Q:

The value of $$ sec{^4}A(1-sin{^4}A)-2tan{^2}A $$ is:

1005 0

  • 1
    $$ {1\over2}$$
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 4. "1"
Explanation :

 Put A=45 degree and we can get answer.

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