Solve- cos20-cos2 -6-cos2-3-cos2-2

cos^20+cos^2 (π6)+(6)^2(π3)+cos^2(π2)=1+34+14+0=2 ...

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Circular Measurement of Angle

Solve: cos20...

Question

Solve:
${cos}^{2} 0 + {cos}^{2} (\frac{π}{6}) + (cos)^{2} (\frac{π}{3}) + {cos}^{2} (\frac{π}{2})$

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Similar questions

cos^{2} (0) + cos^{2} (\frac{Π}{6}) + cos^{2} (\frac{Π}{3}) cos^{2} (\frac{Π}{2})

{cos}^{2} \frac{π}{10} + {cos}^{2} \frac{2 π}{5} + {cos}^{2} \frac{π}{5} + {cos}^{2} \frac{π}{10} =

The maximum value of $c o s^{2} (\frac{π}{3} - x) - c o s^{2} (\frac{π}{3} + x)$ is

{cos}^{2} \frac{π}{12} {cos}^{2} \frac{π}{4} {cos}^{2} \frac{5 π}{12}

Prove that:

${sin}^{2} \frac{π}{6} + {cos}^{2} \frac{π}{3} - {tan}^{2} \frac{π}{4}$ =- $\frac{1}{2}$

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