Question: I need help on this question Find the exact value of the expression. sin (150) cos (75) + cos (15) sin (75) sin (150) cos

I need help on this question

Find the exact value of the expression. sin (150) cos (75) + cos (15) sin (75) sin (150) cos (75) + cos (150) sin (75) = (Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression.)

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