9th Standard English Medium Maths Subject Trigonometry Book Back 1 Mark Questions with Solution Part - I

9th Standard

    Reg.No. :
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Maths

Time : 01:00:00 Hrs
Total Marks : 5

    1 Marks

    5 x 1 = 5
  1. if sin 300 = x and cos 600 = y, then x2  + y2 is________.

    (a)

    \(\frac { 1 }{ 2 } \)

    (b)

    0

    (c)

    sin90°

    (d)

    cos90°

  2. If tan \(\theta\) cot 370 , then the value of \(\theta\) is ________.

    (a)

    370

    (b)

    530

    (c)

    900

    (d)

    10

  3. The value of tan72° tan18° is ________.

    (a)

    0

    (b)

    1

    (c)

    180

    (d)

    720

  4. The value of \(\frac { tan15° }{ cot75° } \) is

    (a)

    cos 900

    (b)

    sin 300

    (c)

    tan 450

    (d)

    cos 300

  5. The value of \(\frac { 2tan\ 30° }{ 1-{ tan }^{ 2 }30° } \) is equal to ________.

    (a)

    cos 600

    (b)

    sin 600

    (c)

    tan 600

    (d)

    sin 300

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