Question

Evaluate: sin²(60)-cos²(30)+tan²(30)​

Answer 1

Answer:

sin 60 = route 3 /2

cos 30 = route 3/2

tan 30 = 1/ route 3

sin^2 60 = 3/4

cos ^2 30 = 3/4

tan^2 30 = 1/3

3/4 - 3/4 = 0

0+1/3= 1/3

hope it helps you !!!!

:)

Answer 2

Answer:

${sin}^{2} (60) - {cos}^{2} (30) +{tan}^{2} (30) \\ = > { (\frac{ \sqrt{3} }{2} )}^{2} - { (\frac{ \sqrt{3} }{2} )}^{2} + {( \frac{1}{ \sqrt{3} } )}^{2}$

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

$= > \frac{1}{3}$

Hope it will help you mate ❤️.

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