Trigonometry Practice Question and Answer

Q:

if 3sin2θ – cosθ-1=0, 00< θ<900, then what is the value of cot θ + cosec θ?

359 0

  • 1
    $${3\sqrt { 2} }\over 2$$
    Correct
    Wrong
  • 2
    $${2\sqrt { 3} }$$
    Correct
    Wrong
  • 3
    $${\sqrt { 5} }$$
    Correct
    Wrong
  • 4
    $${2\sqrt { 5} }$$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "$${\sqrt { 5} }$$"

Q:

if $${secA={5\over 4}}$$, then the value of $${{tanA}\over 1+tan^2A}-{sinA\over secA}$$ is

530 0

  • 1
    1
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "0"

Q:

If $$cosθ + cos^2θ= 1,$$find the value of $$\sqrt {sin^4θ+cos^2θ} \ $$

386 0

  • 1
    $$\sqrt {2cosθ} \ $$
    Correct
    Wrong
  • 2
    $$\sqrt {2sinθ} \ $$
    Correct
    Wrong
  • 3
    2 cosθ
    Correct
    Wrong
  • 4
    2 sinθ
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "$$\sqrt {2cosθ} \ $$"

Q:

if $$ sinA= {4\over 5}$$, then what is the value of $$sin^2A$$

378 0

  • 1
    $$16\over 25$$
    Correct
    Wrong
  • 2
    $$26\over 25$$
    Correct
    Wrong
  • 3
    $$48\over 25$$
    Correct
    Wrong
  • 4
    $$36\over 25$$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "$$16\over 25$$"

Q:

if 2sinθ + 2sin2θ = 2, then the value of 2 cos4θ + 2cos2θ is:

536 0

  • 1
    1
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    0
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "2"

Q:

Find the value of sec θ − tan θ, if sec θ + tan θ = $$ \sqrt { 5} $$

375 0

  • 1
    $$5{1\over 5}$$
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    $$5{1\over 5}$$
    Correct
    Wrong
  • 4
    $$\sqrt { 2} \ $$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "$$5{1\over 5}$$"

Q:

$${1+sinθ}\over cosθ $$ is equal to which of the following (where $$θ ≠ {π\over2} $$

486 0

  • 1
    $${1+cosθ}\over sinθ $$
    Correct
    Wrong
  • 2
    $${tan θ+1}\over tan θ-1 $$
    Correct
    Wrong
  • 3
    $${tan θ-1}\over tan θ+1 $$
    Correct
    Wrong
  • 4
    $$cosθ \over {1-sinθ}\ $$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "$$cosθ \over {1-sinθ}\ $$"

Q:

△ABC is right-angle triangle at B and tan A = $$3\over 4$$, then sin A + sin B + sin C will be equal to:

435 0

  • 1
    $$2{4\over 5}$$
    Correct
    Wrong
  • 2
    $$2{2\over 5}$$
    Correct
    Wrong
  • 3
    $$3{1\over 5}$$
    Correct
    Wrong
  • 4
    $$1{1\over 5}$$
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "$$2{2\over 5}$$"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully