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    If tan x = sin 90° cos 60° + sin 30°, then the value of 'x' is
    Question

    If tan x = sin 90° cos 60° + sin 30°, then the value of 'x' is

    A.

    30°

    B.

    60°

    C.

    45°

    D.

    90°

    Correct option is C

    Given:

    tan x = sin 90° × cos 60° + sin 30°

    Formula Used:
    Use standard trigonometric identities and values:

    • sin 90° = 1

    • cos 60° = 1/2

    • sin 30° = 1/2

    Solution:
    tan x = (1 × 1/2) + 1/2
    = 1/2 + 1/2
    = 1

    Now, we know:
    tan x = 1 => x = 45° (in the principal domain)

    Final Answer:
    45°

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