What is the value of 5√3cos60°tan30° - 3cos0° + 3cos245° + 2sin260°?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2.5.
5√3cos60°tan30° - 3cos0° + 3cos245° + 2sin260°
⇒ 5√3 × 1/2 × 1/√3 - 3 × 1 + 3 × 1/2 + 2 × 3/4
⇒ 5/2 - 3 + 3/2 + 3/2
⇒ 5/2 = 2.5