GATE2018-19

gatecse asked in Calculus Feb 20, 2018 recategorized Mar 18, 2021 by Lakshman Patel RJIT

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Which one of the following is the solution for $\cos^2 x + 2 \cos x + 1 = 0$, for values of $x$ in the range of $0^\circ < x < 360^\circ$

$45^\circ$
$90^\circ$
$180^\circ$
$270^\circ$

gate2018
calculus
trigonometry

gatecse asked in Calculus Feb 20, 2018 recategorized Mar 18, 2021 by Lakshman Patel RJIT

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