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Cos47÷sin43+sin72÷cos18-2cos square 45 evaluate the value

Cos47÷sin43+sin72÷cos18-2cos square 45 evaluate the value

Grade:9

1 Answers

Shailendra Kumar Sharma
188 Points
3 years ago
Cos47/sin (90-47)+Sin72/cos(90-72) -2(1/2)
Since Cos (90-A) =SinA and Sin (90-A) =CosA
1+1-1 =1 Answer

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