Find the value of the following expression:
(tan345° + 4 cos260° /2 cosec2 45° - 3 sec230° + sin30°)
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 4
(tan345° + 4 cos260° /2 cosec2 45° - 3 sec230° + sin30°)
= ( 1+ 4×1/4)/ (2× 2 -3 × 4/3 + 1/2)
= (21/2 )
= 4