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Grade 7Algebra

sinx +cosx=k find value of sin2x

Profile image of Sher Mohammad
12 Years agoGrade 7
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1 Answer

Profile image of Shubham Chakraverty
12 Years ago
(sin x + cos x)^2=k^2 , 1 + sin 2x = k^2 , sin 2x = k^2 -1