Question

Sin²(41°+teta)+sin(49°-teta)

Answer 1

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Question :

Sin²(41°+theta)+sin(49°-theta)

sin (41+theta) + sin (49-theta)

= sin²(41+theta) + sin²(90-(41+theta))

= sin²(41+theta) + cos²(41+theta)

= 1

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