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Using 45° + 30°, find sin 75°.
A(√6 − √2)/4
B(√6 + √2)/4
C(√3 − 1)/2
D(√3 + 1)/2
Answer & Solution
Correct answer: B. (√6 + √2)/4
sin 45° cos 30° + cos 45° sin 30° = (√3 + 1)/(2√2) = (√6 + √2)/4.
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