The quadratic equation whose roots are sin<sup>2</sup> 18° and cos<sup>2</sup> 36°, is:
(A) 16x<sup>2</sup> - 12x + 1 = 0
(B) 16x<span style="position: relative; line-height: 0; vertical-align: baseline; top: -0.5em;font-size:10.5px;">2</span> + 12x + 1 = 0
(C) 16x<span style="position: relative; line-height: 0; vertical-align: baseline; top: -0.5em;font-size:10.5px;">2</span> - 12x - 1 = 0
(D) 16x<span style="position: relative; line-height: 0; vertical-align: baseline; top: -0.5em; font-size:10.5px;">2</span> + 12x - 1 = 0