tolong dijawab ya, sbentar dikumpul

(sin² 45 . cos² 60 + Cos² 45 . cos² 60 )
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tan 30. tan 60
(1/2akar 2)² (1/2)² + (1/2akar2)² (1/2akar3)²
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1/akar3 . akar3
(1/2.2)(1/2)+(1/2.2)(1/2.3)
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1/2.3
2/4 . 1/4 + 2/4 . 3/4
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3/2
2/8 + 6/8
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3/2
8/8
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3/2
1/(3/2) = 3/2
jawabannya D. 3/2