The value of ${s i n}^{2} 60^{o} + {c o s}^{2} 60^{o}$ is :

1

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- 1

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0

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None of these

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Solution

The correct option is A $1$
${sin}^{2} 60 ° + {cos}^{2} 60 °$
$∵ {sin}^{2} θ + {cos}^{2} θ = 1$
$∴ {sin}^{2} 60 ° + {cos}^{2} 60 ° = 1$
Hence, the answer is $1.$

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