41. sin 56° cos 34° + cos 56° sin 34° 42. cos 57° cos 33° – sin 57° sin 33° 43. cos 331° cos 61° + sin 331° sin 61° 44. cos 110° sin 70° + sin 110° cos 70° tan 129° – tan 84° 45. 1 + tan 129° tan 84° tan 46. 1 -

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