Find “x” at: x = Cos4377π + 8Sen750 ° Select one: a. 1/3 b. 2 C. 1/2 d. 3

Question

Find “x” at: x = Cos4377π + 8Sen750 ° Select one:

a. 1/3
b. 2
C. 1/2
d. 3

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6 months 2021-08-04T06:57:09+00:00 1 Answers 2 views 0

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    2021-08-04T06:58:49+00:00

    Answer:

    d. 3

    Explanation:

    x = cos(4377π) + 8 sin(750°)

    A full circle is 2π radians or 360°.

    x = cos(4377π − 4376π) + 8 sin(750° − 720°)

    x = cos(π) + 8 sin(30°)

    x = -1 + 8 (1/2)

    x = 3

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )