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How do you simplify the expression $3 ({sin}^{2} x + {cos}^{2} x)$ $3(sin^2x+cos^2x)$ ?

1 Answer

Aug 29, 2016

$3 ({sin}^{2} x + {cos}^{2} x) = 3$ $3(sin^2x + cos^2x) = 3$

Explanation:

Apply the pythagorean identity ${sin}^{2} θ + {cos}^{2} θ = 1$ $sin^2theta + cos^2theta = 1$ .

$\Rightarrow 3 (1)$ $=>3(1)$

$\Rightarrow 3$ $=>3$

Hopefully this helps!

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