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Which of the following is equal to
sin56∘cos17∘−cos56∘sin17∘? \sin 56 ^ \circ \cos 17 ^ \circ - \cos 56 ^ \circ \sin 17 ^ \circ ? sin56∘cos17∘−cos56∘sin17∘?
sin43∘cos82∘+cos43∘sin82∘=sinN∘ \sin 43 ^ \circ \cos 82 ^ \circ + \cos 43 ^ \circ \sin 82 ^ \circ = \sin N ^\circ sin43∘cos82∘+cos43∘sin82∘=sinN∘, where 0≤N≤90 0 \leq N \leq 90 0≤N≤90. What is the value of NNN?
sin29∘cos31∘+cos29∘sin31∘? \sin 29 ^ \circ \cos 31 ^ \circ + \cos 29 ^ \circ \sin 31 ^ \circ ?sin29∘cos31∘+cos29∘sin31∘?
Using the Sine sum formula, what is the value of
sin75∘? \sin 75 ^ \circ ?sin75∘?
sin21∘cos37∘+cos21∘sin37∘=sinN∘ \sin 21 ^ \circ \cos 37 ^ \circ + \cos 21 ^ \circ \sin 37 ^ \circ = \sin N ^\circ sin21∘cos37∘+cos21∘sin37∘=sinN∘, where 0≤N≤90 0 \leq N \leq 90 0≤N≤90. What is the value of NNN?
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