Please do qs no. 27(i)
Q.27.(i)
Kindly refer the link for your query.
https://www.meritnation.com/ask-answer/question/1-cosa-sina-1-cosa-sina-1-sina-cosa/introduction-to-trigonometry/10261797
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https://www.meritnation.com/ask-answer/question/1-cosa-sina-1-cosa-sina-1-sina-cosa/introduction-to-trigonometry/10261797
Regards