Question

its a question of trigonometry !
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Answer 1

Answer:

25/16

Step-by-step explanation:

Sin 0 = 0

cos 30 = √3/2

tan 60 = √3

tan 45 = 1

cos 45 = 1/√2

put all the values accordingly

=> 9(0 + 9/16) -3(3 - 1) + 5*1/2

=>81/16 -6 + 5/2

=> (81 - 96 + 40)/16

=> 25/16

Answer 2

Answer:

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