engineering recuitment ICAR Technician 2021 Mock Test (Re-Exam) Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

sin2θ = x, then what will be the value of (cos2θ)2.

1
1 + 2x2 - 3x 
2
1 + 4x2 - 4x 
3
1 + 3x2 + 2 
4
1 + x 
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