The value of 4tan230° + 1/4 sin290° + (1/8) × (cot230°cos245°/sin60°cos30°) - cos60°sin30° is:
Show answer & explanation
Correct answer: D
Explanation
Correct answer is option 4 i.e. 19/12
|
Application |
|
4tan230° + 1/4 sin290° + (1/8) × (cot230°cos245°/sin60°cos30°) - cos60°sin30° ⇒ 4 × 1/3 + 1/4 + (1/8)(3/2 ÷ 3/4) - 1/4 ⇒ 4/3 + 1/4 ⇒ 19/12 |