D. Find the exact numerical value of the following expression. 1) sin 30° cos 45° + cos 30° sin 45° 2) cos 30° cos 60° - sin 30° sin 60° 3) sin² 30° + cos² 30° 4) cot² 60° - csc² 60° 5) (sec 45° + cos 45°)² 6) (tan 60°) (cos 60°) (csc 60°) 7) (tan 30° - cot 30°) 8) √√3 sin 60° - cos² 60° -2 cos² 45° 9) 4 cos³ 60° + 3√2 sin 45° -2 cos² 60° + 2 sin 60° 10) 8√5 cos 30° - sec 60° tan 30° csc 45°


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