Show that the value of cos 30 x tan 60 + sin 30 is an integer

Question

Show that the value of cos 30 x tan 60 + sin 30 is an integer

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Yến Oanh 4 years 2021-09-03T18:34:46+00:00 2 Answers 26 views 0

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  1. King
    0
    2021-09-03T18:36:09+00:00
    Reply

    Answer:

    ang hirap nang tanong

  2. vankhanh
    0
    2021-09-03T18:36:40+00:00
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    Answer:

    value of cos 30 × tan 60 + sin 30 is an integer…

    Step-by-step explanation:

    cos 30 =

    \frac{ \sqrt{3} }{2}

    tan 60 =

    \sqrt{3}

    sin 30 =

    \frac{1}{2}

    so, cos 30 × tan 60 + sin 30

    \frac{ \sqrt{3} }{2} \times \sqrt{3} + \frac{1}{2}

    =

    \frac{3}{2} + \frac{1}{2}

    =

    \frac{4}{2}

    =

    2

    and 2 is an integer , hence we proved that

    cos 30 × tan 60 + sin 30 is an integer.

    i hope it helped......

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