8. Evaluate :
(tan60°)² + 4 cos²45° +4 cosec²60° +2 cos²90° / 2 cosec 30° +3 sec 60° - 7/3 cot² 30°
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Answer:
28/3
Step-by-step explanation:
tan 60= √3
cos 45=1/√2
cosec 60=2/√3
cos 90=0
cosec 30=2
sec 60= 2
cot 30=√3
putting all the values;
(√3)² + 4 (1/√2)² + 4(2/√3)² + 2(0)/2(2) + 3(2) - 7/3(√3)²
=3 + 2 + 16/3 + 0 + 6 - 7
=4 + 16/3
=28/3
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