Question

(cos 30°)^2 + (sen 60°)^2 - (tan 45°)^2

URGENTE porfaaa

Answer 1

Explicación paso a paso:

(cos 30°)^2 + (sen 60°)^2 - (tan 45°)^2

${( \frac{ \sqrt{3} }{2} )}^{2} + {( \frac{ \sqrt{3} }{2} )}^{2} - {(1)}^{2} \\ ( \frac{ { \sqrt{3} }^{2} }{ {2}^{2} } ) + ( \frac{ { \sqrt{3} }^{2} }{ {2}^{2} } ) - ( {1)}^{2 } \\ = \frac{3}{4} + \frac{3}{4} - 1 \\ = \frac{3 + 3 - 4}{4} \\ =\frac{2}{4} \\ = \frac{1}{2} respueta$