Verify the identity. sin (a+ B) = cot B+ cot a sin a sin B Write the left side numerator in terms of a sum or difference formula for sine or cosine. sin (a+ B) sin a sin B sin asin B Rewrite the expression found in the previous step by separating the denominator. sin a cos B cos a sin B The expression from the previous step then simplifies to cot B+ cot a using what? O A. Even-Odd Identity O B. Reciprocal Identity O C. Pythagorean Identity O D. Quotient Identity

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