Question

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Answer 1

PLEASE SEE THE ATTACHMENT

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Answer 2

Answer:

7/4

Step-by-step explanation:

(cos 0° + sin 45° + sin 30°)(sin 90° − cos 45° + cos 60°)

$(1+1/\sqrt{2}+1/2) (1-1/\sqrt{2}+1/2)\\(3/2+1/\sqrt{2}) (3/2-1/\sqrt{2})\\(3/2)^{2} -(1/\sqrt{2}) ^{2} \\9/4-1/2\\(9-2)/4\\7/4$

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