Categories > trigonometry > Fundamental trigonometrical ratios and functions > If $\sin x+{{\sin }^{2}}x=1$, then the value of ${{\cos }^{12}}x+3{{\cos }^{10}}x+3{{\cos }^{8}}x+{{\cos }^{6}}x-2$ is equal to

trigonometry

Question: If $\sin x+{{\sin }^{2}}x=1$, then the value of ${{\cos }^{12}}x+3{{\cos }^{10}}x+3{{\cos }^{8}}x+{{\cos }^{6}}x-2$ is equal to


1) 0
2) 1
3) – 1
4) 2
Solution: Explanation: No Solution
Fundamental trigonometrical ratios and functions Trigonometrical ratio of allied angles

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