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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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