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Eamcet Mathematics
Trigonometry : Multiple And Submultiple Angles

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The equation whose roots are sin² 18°, cos² 36° is

A. 16x² - 12x - 1=0

B. 16x² - 12x + 1=0

C. 16x2 + 12x+1=0

D. 16x2 + 12x-1=0

E. None of the above

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Correct choice: B

Explanation:

16x² - 12x +1=0

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Eamcet Mathematics Trigonometry : Multiple And Submultiple Angles

Eamcet Mathematics
Trigonometry : Multiple And Submultiple Angles