Question

find the value
sin²30⁰-cos²30⁰​

Answer 1

$\huge\underline\mathtt\blue{Answer}$

Sin 30° = 1/2

Cos 30° = √3/2

${sin}^{2} 30 - {cos}^{2} 30 \\ \\ ( { \frac{1}{2} )}^{2} - ( { \frac{ \sqrt{3} }{2} )}^{2} \\ \\ \frac{1}{4} - \frac{3}{4} \\ \\ \frac{1 - 3}{4} \\ \\ \frac{ - 2}{4} \\ \\ \frac{ - 1}{2}$