prathampalsing prathampalsing

26-07-2016
Mathematics

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evaluate 2 sin square 30 degree tan 60 degree - 3 cos square 60 degree sec square 30 degree

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sqdancefan sqdancefan

07-08-2019

Answer:

(√3)/2 -1 ≈ -0.133974596

Step-by-step explanation:

2sin²(30°)tan(60°) -3cos²(60°)sec²(30°)

= 2(1/2)²(√3) -3(1/2)²(2/√3)²

= 2(1/4)√3 -3(1/4)(4/3)

= (√3)/2 -1 ≈ -0.133974596

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