2 18° and cos2 36°, is:" - Step-by-step solution, answer key, and detailed explanation on MCA Prep."> 2 18° and cos2 36°, is:" - Step-by-step solution, answer key, and detailed explanation on MCA Prep." /> 2 18° and cos2 36°, is:" - Step-by-step solution, answer key, and detailed explanation on MCA Prep." />

Question 6

Mathematics Linear and Quadratic Equations Hard

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

📘 Step-by-Step Solution & Detailed Explanation:

Correct Option is A. Practice regular variations of this Linear and Quadratic Equations concept to build speed and accuracy.

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