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In RD sharma Pg no 11.24 Question no 11 Please

Answer» X=2
See at following l ink I don,t have RD sharma book:https://www.topperlearning.com/study/cbse/class-10/mathematics/text-book-solutions/r-d-sharma-mathematics-x/42/trigonometric-identities/277/b101c2s3e9


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