Question

evaluate:-
cos2 60°-3cos 60°+2/sin2 60°​

Answer 1

Answer:

1

Step-by-step explanation:

cos²60°-3cos60°+2/sin²60°

(1/2)²-3(1/2)+2/(√3/2)²

1/4-3/2+2/ 3/4

1-6+8/4 3/4

3/4. / 3/4

1

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Answer 2

Step-by-step explanation:

hope this helps you

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