Solve the following $Sin^2 60° + Cos^2 60°$

Academic Mathematics NCERT Class 9

Given: $Sin^2 60° + Cos^2 60°$

To find: The value of the expression

Solution:
$Sin^2 60° + Cos^2 60°$

=$(\frac{\sqrt{3}}{2})^2 +(\frac{1}{2})^2$

=$\frac{3}{4}+\frac{1}{4}$

=$\frac{4}{4}=1$

Hence the value of $Sin^2 60° + Cos^2 60°$ is $1$

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Updated on: 10-Oct-2022

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