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The answe is 2.
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Step-by-step explanation:
Sin(90-72)/ Co72 + √3 {Tan10 .Tan30 Tan40 Tan(90-40) .Tan(90-10)}
Cos72/Cos72. +√3 ( Tan10. Cot10 .Tan40 .Cot40 .Tan30)
1+ √3( Tan10 ×1/Tan10 . Tan40× 1/Tan40 . Tan30)
1 + √3 × Tan30
=1+ √3 ×1/√3
=1+1
=2
Answer is 2
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