cos 2θ = __________.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2 cos2 θ - 1.
cos2θ = 2cos2θ - 1
SSC CHSL 2023 PYQ — Question 69
SSC CHSL - 09 Aug 2023 - Shift 3 • Quantitative Aptitude • Q69
SSC CHSL - 09 Aug 2023 - Shift 3 • Quantitative Aptitude • Q69
cos 2θ = __________.
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2 cos2 θ - 1.
cos2θ = 2cos2θ - 1