Question

pls answer this question, pointless answers will be reported. ​

Answer 1

[tex]\mathfrak{\huge{Answer:-}} \\ 3 {cos}^{2} A = 2 \frac{1}{4} \\ 3 {cos}^{2} A = \frac{9}{4} \\ {cos}^{2} A = \frac{9}{4} \times \frac{1}{3} \\ {cos}^{2} A = \frac{3}{4} \\ cosA = \sqrt{ \frac{3}{4} } \\ cosA = \frac{ \sqrt{3} }{2} \\ cosA = cos30° \\ \boxed{\boxed{\large{\bold{ A = 30°}}} }[/tex]